Methyl 4-Hydroxybenzoate — label CAS 99-76-3
Methyl 4-Hydroxybenzoate — label CAS 99-76-3

Methylparaben (CAS 99-76-3)

Methyl 4-hydroxybenzoate. CAS 99-76-3. 5ml.

Free, and generated automatically from the sources listed on this page. No person has reviewed it, and it describes the substance in general — not your material, your process or your intended market.

REACH 2020/878
v5 · 21.10.2026

Section 9 — physicochemical properties: 9 of 22 established.

We show what is established and name what is not. Classification and identity are complete on every card; section 9 is where public data is thin.

DOCUMENTATION AND 3D PRINTED MODELS ONLY

This page offers documentation related to the listed substance. MolGod does not sell or supply the chemical substance itself.

Scientific · Buyer · Compliance

This page sells the documentation for this substance, not the substance. Choose the level you need.

  1. €0Audit the sheet you already haveSend us your existing sheet for this substance and we tell you what is wrong with it. One per company. If it turns out to be sound, you buy nothing.Start the free audit →
  2. €49.99Working draftThe complete sixteen-section document, referenced, downloadable immediately after checkout. The right choice while the paperwork is still moving.
  3. €249.99Signed cardThe same document reviewed and signed, issued within 72 hours of complete input — for the moment somebody official asks who stands behind it.

Documentation available for this substance: safety data sheet · CLP label · certificate of analysis on request · specification. Languages: the official language of your destination market, produced per card.

Grade, purity, physical form, packaging, minimum order and lead time are not shown, because MolGod does not supply the material — those are facts about a seller, and there is no seller on this page. They appear on storefronts we build for suppliers, where somebody can answer for them.

See a finished document firstFull price list →

What you receive — and what this is not

What you receive

  • A digital PDF safety data sheet in the sixteen-section structure of REACH Annex II (Regulation 1907/2006).
  • Substance identification, hazard classification, physicochemical, toxicological and ecological information, and regulatory references.
  • Classification read against the harmonised entry in CLP Annex VI where one exists for the substance.
  • A version number, a compilation date, and the source behind each value that carries one.
  • Delivery by e-mail. Nothing is shipped.

What this is not

  • Not a chemical substance, not a sample, not any physical goods.
  • Not a certification. No official certification scheme for safety data sheets exists in the European Union.
  • Not legal approval, and not a guarantee of compliance in any jurisdiction.
  • Not a substitute for your own regulatory assessment, nor for the safety data sheet supplied by the manufacturer or importer of the substance you actually hold.
  • Not adapted to a specific workplace, process or national annex unless you provide that information.

Where the available evidence does not support a value, the sheet states that the value is not established rather than estimating one. A field with no recorded source is marked as such.

What is in the buyer pack

Everything your compliance officer will ask for, in one file.

  • The product page as PDF — the record as published, so what you forward matches what you read.
  • The safety data sheet at your entitlement level — sixteen sections in the order set by REACH Annex II, for this substance, in the language you select.
  • The CLP label artwork — generated from the same classification as the sheet, so the two cannot disagree.
  • The specification, and the certificate of analysis where batch data exists.
  • sources.txt — every citation with the date it was read.
  • An explicit list of what we could not establish — fields marked unavailable rather than filled with an estimate. This is the honest part of the document and we do not hide it in a footnote.

Your European buyer is going to forward this to somebody who was not on the call. The pack exists so that what they forward is complete, self-explanatory and traceable — rather than four attachments and a sentence beginning “I think this is everything”.

About the language versions

These switch the language of this page. Single substances. Mixtures on enquiry. One document, one language — additional languages are priced separately. Every version, including the Chinese one, is written to EU law — (EC) No 1907/2006 (REACH) Annex II and (EU) 2020/878 — and translated from it. The Chinese version is a reference translation, not a legally valid document for the Chinese market: an SDS for China must be compiled separately to GB/T 16483 and GB/T 17519.

🧬 3D Molecule Visualizer
Loading molecule...
3D model Methylparaben, CAS 99-76-3, molecular formula C8H8O3, molar mass 152.15 g/mol

Model views

  • Methylparaben (CAS 99-76-3) – ball-and-stick 3D model, MolGod Viewer
    ball-and-stick 3D model
  • Methylparaben (CAS 99-76-3) – skeletal 3D model, MolGod Viewer
    skeletal 3D model
  • space-filling 3D model – rotation animation
  • Methylparaben (CAS 99-76-3) – 2D structure, MolGod Viewer
    2D structure

© 2026 MolGod.org. All rights reserved. · Image rights

Data transcribed from regulatory registers and technical literature, with the source and edition stated. It does not replace the supplier's safety data sheet. Fields without a recorded source are marked as such.

🖨️ 3D print model & license
Methylparaben (CAS 99-76-3), C8H8O3 - 3D ball-and-stick molecular model, engraved element symbols (C H O), MolGod STL previewDownload image

MG_564-845-489-87 · engraved · 335,336 △ · 16 MB · SHA-256 253243dd353526a9

Download 3D model · ENGRAVED · C H O

Methylparaben (CAS 99-76-3), C8H8O3 - 3D ball-and-stick molecular model, MolGod STL previewDownload image

MG_564-845-489-87 · normal · 8,288 △ · 405 KB · SHA-256 6446c7091c4e4e43

Download 3D model

License & provenance ↓

⚠️ The MolGod.org name and logo, including the raised logo on the base, are our trademark. The CC BY-SA 4.0 licence does not cover trademarks (section 2(b)(2)). Do not use the MolGod.org logo to brand your own products, in advertising, or in any way that suggests our endorsement without our written permission.

📊 Physicochemical data — CAS 99-76-3
📊 Physicochemical properties

Quick Reference

Formula: C8H8O3
MW: 152.15 g/mol
CAS: 99-76-3
Appearance: White needles
Odour: Odorless or has faint characteristic odor
🔬 Advanced Properties

Chemical Identifiers

SMILES: COC(=O)C1=CC=C(C=C1)O

Last updated: 2026-09-02

Chemical Overview: Methylparaben
Molecular formulaC8H8O3[1]
Molecular weight152.15 g/mol[1]
LogP (lipophilicity)2[1]
IUPAC namemethyl 4-hydroxybenzoate[1]
SMILESCOC(=O)C1=CC=C(C=C1)O[1]
InChIKeyLXCFILQKKLGQFO-UHFFFAOYSA-N[1]

Synonyms: Methyl 4-hydroxybenzoate · METHYLPARABEN · 99-76-3 · Methyl paraben · Methyl p-hydroxybenzoate

Data sources: PubChem (NLM/NIH)
Last updated: 2026-09-03

📚 Scientific references (Chicago Author-Date) (1 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ applies to: Molecular formula · Molecular weight · LogP (lipophilicity) · IUPAC name · SMILES · InChIKey

SCIENTIFIC RESEARCH

[1]PubMed2026
Unraveling the Mechanisms of Osteoporosis Triggered by Methylparaben and Monomethyl Phthalate through Integrated Mendelian Randomization, In Silico Simulations,…
Liu H, Xu X, Du L et al.. (2026). "Unraveling the Mechanisms of Osteoporosis Triggered by Methylparaben and Monomethyl Phthalate through Integrated Mendelian Randomization, In Silico Simulations, and
Go to full study ↗
[2]PubMed2025
Methylparaben and propylparaben promote bladder cancer invasion via MMP2 and PPARG modulation.
Zhu T, Luo W, Zhang Y et al.. (2025). "Methylparaben and propylparaben promote bladder cancer invasion via MMP2 and PPARG modulation.". Ecotoxicology and environmental safety. https://doi.org/10.1016/
Go to full study ↗
[3]PubMed2025
Integrating machine learning and experiments to elucidate the potential molecular mechanisms of methylparaben-induced Alzheimer's disease: evidence from a…
Zhang HE, Xiao ML, Ji JJ et al.. (2025). "Integrating machine learning and experiments to elucidate the potential molecular mechanisms of methylparaben-induced Alzheimer's disease: evidence from a Tau
Go to full study ↗
[4]PubMed2025
Combining Mendelian randomization and network toxicology to decipher the causal role and molecular mechanisms of environmental pollutants in…
Yang Y, Wang Y, Sun Y. (2025). "Combining Mendelian randomization and network toxicology to decipher the causal role and molecular mechanisms of environmental pollutants in breast cancer: A focus on M
Go to full study ↗
[5]PubMed2024
Bioaccumulation and ecotoxicity of parabens in aquatic organisms: Current status and trends.
da Silveira FFCL, Porto VA, de Sousa BLC et al.. (2024). "Bioaccumulation and ecotoxicity of parabens in aquatic organisms: Current status and trends.". Environmental pollution (Barking, Essex : 1987)
Go to full study ↗
[6]PubMed2024
A validated stability‐indicating reversed‐phase‐UPLC method for simultaneous estimation of promethazine hydrochloride, methylparaben, propylparaben and sodium benzoate assay of…
Pippalla S, Nekkalapudi AR, Komreddy VR. (2024). "A validated stability‐indicating reversed‐phase‐UPLC method for simultaneous estimation of promethazine hydrochloride, methylparaben, propylparaben an
Go to full study ↗
[7]PubMed2024
Combining mendelian randomization analysis and network toxicology strategy to identify causality and underlying mechanisms of environmental pollutants with…
Song H, Zhou H, Yang S et al.. (2024). "Combining mendelian randomization analysis and network toxicology strategy to identify causality and underlying mechanisms of environmental pollutants with glio
Go to full study ↗
[8]PubMed2024
Methyl Paraben Affects Porcine Oocyte Maturation Through Mitochondrial Dysfunction.
Huang H, Huang C, Li Y et al.. (2024). "Methyl Paraben Affects Porcine Oocyte Maturation Through Mitochondrial Dysfunction.". Biomolecules. https://doi.org/10.3390/biom14111466
Go to full study ↗
📚 Scientific references (Chicago Author-Date) 13 refs · 1 baz

MOLECULE Per-CAS bibliography (live from 13+ databases)

Sources: db:pubmed (14)

  1. db:pubmed Liu H, Xu X, Du L et al.. (2026). "Unraveling the Mechanisms of Osteoporosis Triggered by Methylparaben and Monomethyl Phthalate through Integrated Mendelian Randomization, In Silico Simulations, and Experimental Validation.". Environmental science & technology. https://doi.org/10.1021/acs.est.5c12267 →
  2. db:pubmed Zhu T, Luo W, Zhang Y et al.. (2025). "Methylparaben and propylparaben promote bladder cancer invasion via MMP2 and PPARG modulation.". Ecotoxicology and environmental safety. https://doi.org/10.1016/j.ecoenv.2025.119383 →
  3. db:pubmed Zhang HE, Xiao ML, Ji JJ et al.. (2025). "Integrating machine learning and experiments to elucidate the potential molecular mechanisms of methylparaben-induced Alzheimer's disease: evidence from a Tau hyperphosphorylation cell model.". BMC neurology. https://doi.org/10.1186/s12883-025-04582-x →
  4. db:pubmed Yang Y, Wang Y, Sun Y. (2025). "Combining Mendelian randomization and network toxicology to decipher the causal role and molecular mechanisms of environmental pollutants in breast cancer: A focus on Methyl-4-hydroxybenzoate.". Cancer epidemiology. https://doi.org/10.1016/j.canep.2025.102953 →
  5. db:pubmed da Silveira FFCL, Porto VA, de Sousa BLC et al.. (2024). "Bioaccumulation and ecotoxicity of parabens in aquatic organisms: Current status and trends.". Environmental pollution (Barking, Essex : 1987). https://doi.org/10.1016/j.envpol.2024.125213 →
  6. db:pubmed Pippalla S, Nekkalapudi AR, Komreddy VR. (2024). "A validated stability‐indicating reversed‐phase‐UPLC method for simultaneous estimation of promethazine hydrochloride, methylparaben, propylparaben and sodium benzoate assay of cough suppressant and antihistamine liquid oral dosage forms.". Biomedical chromatography : BMC. https://doi.org/10.1002/bmc.5944 →
  7. db:pubmed Huang H, Huang C, Li Y et al.. (2024). "Methyl Paraben Affects Porcine Oocyte Maturation Through Mitochondrial Dysfunction.". Biomolecules. https://doi.org/10.3390/biom14111466 →
  8. db:pubmed Pereira AR, Gomes IB. (2024). "The effects of methylparaben exposure on biofilm tolerance to chlorine disinfection.". Journal of hazardous materials. https://doi.org/10.1016/j.jhazmat.2024.134883 →
  9. db:pubmed Mao W, Qu J, Zhong S et al.. (2023). "Associations between urinary parabens and lung cancer.". Environmental science and pollution research international. https://doi.org/10.1007/s11356-023-26953-y →
  10. db:pubmed Hu C, Sun B, Tang L et al.. (2022). "Hepatotoxicity caused by methylparaben in adult zebrafish.". Aquatic toxicology (Amsterdam, Netherlands). https://doi.org/10.1016/j.aquatox.2022.106255 →
  11. db:pubmed Nowak K, Jabłońska E, Garley M et al.. (2021). "Methylparaben-induced regulation of estrogenic signaling in human neutrophils.". Molecular and cellular endocrinology. https://doi.org/10.1016/j.mce.2021.111470 →
  12. db:pubmed Kolatorova L, Sramkova M, Vitku J et al.. (2018). "Parabens and their relation to obesity.". Physiological research. https://doi.org/10.33549/physiolres.934004 →
  13. db:pubmed Soni MG, Taylor SL, Greenberg NA et al.. (2002). "Evaluation of the health aspects of methyl paraben: a review of the published literature.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/s0278-6915(02)00107-2 →
Regulatory status of the substance
This substance is subject to regulatory requirements: hazardous waste management (BDO — national rule, Poland). Details in the "Regulatory Status (REACH/ECHA/CLP)" section and on the SDS. Regulatory information — does not restrict purchase in this store.
🧮 Stoichiometry Calculator
🧪 Chemical Data
CAS Number
99-76-3
Molecular formula
C8H8O3
Molar mass
152.15 g/mol
IUPAC name (EN)
methyl 4-hydroxybenzoate
SMILES
COC(=O)C1=CC=C(C=C1)O
InChIKey
LXCFILQKKLGQFO-UHFFFAOYSA-N
📡 Data sources

The data in this widget comes from the following verified scientific sources:

  • PubChem — National Center for Biotechnology Information (NCBI/NIH), USA
  • ChEMBL — European Bioinformatics Institute (EMBL-EBI), UK
  • NIST WebBook — National Institute of Standards and Technology, USA

Data is cached locally for speed — the widget also works offline.

⚗️ Physicochemical properties
Temp. topnienia
125.3

Source: PubChem, NIST WebBook. Last updated: 2026-09-02

🔍 External identifiers
14 of 16 ID systems88%
DatabaseIdentifierActions
CAS Registry Number99-76-3Open →
PubChem CID7456[1]Open →
InChIKeyLXCFILQKKLGQFO-UHFFFAOYSA-N[1]Open →
SMILESCOC(=O)C1=CC=C(C=C1)O[1]
EC Number202-785-7[2]Open →
ChEMBLCHEMBL325372[3]Open →
DrugBankDB14212Open →
KEGG CompoundD01400Open →
HMDBHMDB0032572Open →
ChemSpider7176[4]Open →
MeSH UID (NLM)C015358Open →
UNII (FDA)A2I8C7HI9TOpen →
NSC Number (NCI)3827Open →
WikiData QIDQ229987Open →

Sources: PubChem (NIH), Wikidata SPARQL, KEGG, ChEMBL (EBI), CompTox CTX (EPA).

📚 Scientific references (Chicago Author-Date) (4 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ applies to: PubChem CID · InChIKey · SMILES
  2. ECHA. EC Inventory — EINECS, ELINCS, NLP and List Numbers assigned under REACH. Helsinki: European Chemicals Agency. ↗ applies to: EC Number
  3. ChEMBL. European Bioinformatics Institute (EMBL-EBI), bioactivity database. ↗ applies to: ChEMBL
  4. ChemSpider. Royal Society of Chemistry, chemical structure database. ↗ applies to: ChemSpider
📡 Spectroscopy — CAS 99-76-3
📊 Spectra (NMR, IR, MS, UV-Vis) (1)

Available spectrum types: IR

IR spectrum (KBr, 4000-400 cm⁻¹)

413 data points · Source: NIST WebBook · NIST ↗ · 📥 JCAMP-DX
🎓 Spectrum interpretation guide (for students)
How to read an IR spectrum
  • 3200-3600 cm⁻¹ — O-H stretch (broad peak = hydrogen bonding)
  • 2850-3000 cm⁻¹ — C-H stretch (sp³)
  • 1650-1750 cm⁻¹ — C=O stretch (ketones, aldehydes, esters)
  • 1400-1600 cm⁻¹ — aromatic ring vibrations
  • 1000-1300 cm⁻¹ — C-O stretch (ethers, alcohols)
  • No absorption = no functional group → compare with a reference

Sources: LibreTexts ↗, Silverstein (Spectrometric ID) ↗

📚 Scientific references (Chicago Author-Date) (7 sources)
  1. National Institute of Standards and Technology. 2024. "NIST Chemistry WebBook, SRD 69." Gaithersburg, MD: NIST. Accessed 2025-01-01. ↗
  2. Spectral Database for Organic Structure Determination (SDBS). 2024. National Institute of Advanced Industrial Science and Technology (AIST), Japan. Accessed 2025-01-01. ↗
  3. Ulrich, Eldon L., Hideo Akutsu, John F. Doreleijers, Yoko Harano, Yannis E. Ioannidis, Jundong Lin, Miron Livny, et al. 2008. "BioMagResBank." Nucleic Acids Research 36 (D1): D402–D408. [DOI ↗]
  4. Horai, Hisayuki, Masanori Arita, Shigehiko Kanaya, Yoshito Nihei, Tasuku Ikeda, Kazuhiro Suwa, Yuya Ojima, et al. 2010. "MassBank: A Public Repository for Sharing Mass Spectral Data for Life Sciences." Journal of Mass Spectrometry 45 (7): 703–714. [DOI ↗]
  5. Linstrom, P.J., and W.G. Mallard, eds. 2024. NIST Chemistry WebBook, NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. ↗
  6. McDonald, M. Shane, Mike McAvoy, and Ajit Bhalerao. 1988. "JCAMP-DX: A Standard Form for Exchange of Infrared Spectra in Computer Readable Form." Applied Spectroscopy 42 (1): 151–162. [DOI ↗]
  7. PubChem. 2024. "PubChem Compound Database." National Library of Medicine, National Institutes of Health. Accessed 2025-01-01. ↗
Structural properties
ParameterValueUnit
Molecular formulaC8H8O3
Molar mass152.15g/mol
Exact mass152.047344113Da
Monoisotopic mass152.047344113Da
Topological polar surface area (TPSA)46.5000Ų
XLogP32
Complexity index136
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds2
Heavy atoms11
Stereocentres (atoms)0
Stereocentres (bonds)0
3D volume119.7000ų
Number of 3D conformers2
Conformer model RMSD0.4000Å
Effective 3D rotors2
H-bond acceptors (3D)1
H-bond donors (3D)1
Rings (3D)1
Hydrophobic centres (3D)0
Steric quadrupole 3D (X/Y/Z)5.42 / 1.45 / 0.59Ų

Source: PubChem Computed Properties, CID 7456

❓ Frequently asked questions (7)
What is Methylparaben?
Methylparaben (CAS 99-76-3) is a chemical compound with the molecular formula C8H8O3 and a molecular weight of 152.15 g/mol. The chemical data comes from PubChem (National Institutes of Health, USA).
Helpful?
What is the CAS number of Methylparaben?
The CAS number for Methylparaben is 99-76-3. A CAS Registry Number is the standard identifier for a chemical substance in scientific literature and in trade.
Helpful?
What is the chemical formula of Methylparaben?
The molecular formula of Methylparaben is C8H8O3. Its molecular weight is 152.15 g/mol.
Helpful?
What is the melting point of Methylparaben?
The melting point of Methylparaben is 125.2673.
Helpful?
What is the boiling point of Methylparaben?
The boiling point of Methylparaben is 270.5.
Helpful?
Is Methylparaben hazardous?
Methylparaben has no harmonised EU classification (CLP Annex VI). The supplier's self-classification (not legally binding) lists: H336, H402, H411, H412. Read the safety data sheet before use and follow the handling precautions it states.
Helpful?
How should Methylparaben be stored?
Methylparaben should be stored as its safety data sheet directs — typically in a dry, cool, well-ventilated place, away from heat and from materials it is incompatible with.
Helpful?
➕ Suggest a question
Download structure files

Molecular structure files from the PubChem database (NIH). Compatible with Avogadro, PyMOL, Jmol, and ChemDraw.

Source: PubChem, National Library of Medicine (NIH). CID: 7456

🔄 Concentration unit converter LIVE

Enter the Methylparaben concentration in any unit — the rest will be calculated automatically.

MW: 152.15 g/mol · IUPAC Gold Book ↗

⚗️ Conversion formulas + citations (per formula)
ConversionFormulaAccuracySource
% (w/v) ↔ molarityc (mol/L) = (% × 10) / MW±0.5% rel. when density ≈ 1.0 g/mLIUPAC (2019)
millimolar ↔ molarc (mol/L) = mM × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
molarity (mol/L)c = n/V = (m/MW)/V±0.1% (depends on MW precision)IUPAC (2019)
parts per million (mg/L) ↔ molarityc (mol/L) = ppm / (1000 × MW); equivalently ppm = mg/L for dilute aqueous±1% (density-independent for dilute solutions)IUPAC (2019)
mg/mL ↔ molarityc (mol/L) = (mg/mL × 1000) / MW / 1000 = mg/mL / MW × 1±0.2%Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
g/L ↔ molarityc (mol/L) = (g/L) / MW±0.1% (depends on MW precision)Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
mmol/L ↔ molarityc (mol/L) = mmol/L × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
Celsius ↔ KelvinT(K) = t(°C) + 273.15±0.01 K (ITS-90 scale)BIPM (Bureau International des Poids et Mesures) (2019)
Celsius ↔ FahrenheitT(°F) = T(°C) × 9/5 + 32±0.1 °FThompson A, Taylor BN (2008)
density-corrected % ↔ molarityc (mol/L) = (%w/w × ρ × 10) / MW, ρ in g/mL±0.1% when ρ known to 3 decimalsCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
📚 Bibliography (8 authoritative sources)
  1. Thompson A, Taylor BN (2008). Guide for the Use of the International System of Units (SI). NIST Special Publication 811 · DOI: 10.6028/NIST.SP.811e2008
    → Primary SI standard for US scientific usage
  2. Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007). Quantities, Units and Symbols in Physical Chemistry — The IUPAC Green Book. RSC Publishing, 3rd ed. · DOI: 10.1039/9781847557889 · ISBN: 978-0-85404-433-7
    → Canonical IUPAC guide for chemistry quantities/units
  3. BIPM (Bureau International des Poids et Mesures) (2019). The International System of Units (SI), 9th edition. BIPM · ↗
    → International SI definitions (incl. redefined kilogram 2019)
  4. ISO/IEC (2022). Quantities and units — Part 1: General. International Organization for Standardization — ISO 80000-1:2022 · ↗
    → General rules for physical quantities and units
  5. ISO/IEC (2019). Quantities and units — Part 9: Physical chemistry and molecular physics. International Organization for Standardization — ISO 80000-9:2019 · ↗
    → Concentration / molality / amount-of-substance conventions
  6. Tiesinga E, Mohr PJ, Newell DB, Taylor BN (2021). CODATA recommended values of the fundamental physical constants: 2018. Rev. Mod. Phys. 93(2):025010 · DOI: 10.1103/RevModPhys.93.025010
    → Avogadro, gas constant, molar volume (2019 SI revision)
  7. IUPAC (2019). Compendium of Chemical Terminology — the IUPAC Gold Book (online). IUPAC · DOI: 10.1351/goldbook
    → Definitions of mass fraction, molality, normality, ppm, activity
  8. Mills IM, Cvitaš T, Homann K, Kallay N, Kuchitsu K (1988). Quantities, Units and Symbols in Physical Chemistry. Blackwell Scientific Publications, 1st ed. · ISBN: 0-632-01773-5
    → Historical predecessor of IUPAC Green Book
Similar molecular structures

Loading similar structures...

🧪 Solution Preparation Wizard WIZARD
① Select concentration
② Target volume
③ Solvent

Calculations per: IUPAC Gold Book ↗, Merck ↗

Computational chemistry

Molecular descriptors

ParameterValueUnit
XLogP3 (lipophilicity)2.00
lipophilic (prefers organic phase)
Topological polar surface area (TPSA)46.50Ų
low polarity, good blood-brain barrier penetration
Complexity index136.0
Formal charge0
neutral molecule

Lipinski's Rule of Five

CriterionValueRuleStatus
Molar mass152.15 g/mol<= 500✓
XLogP32.00<= 5✓
Hydrogen bond donors1<= 5✓
Hydrogen bond acceptors3<= 10✓

The compound satisfies Lipinski's rule — potentially good oral bioavailability.

3D pharmacophore features

ParameterValueUnit
H-bond acceptors (3D)1
H-bond donors (3D)1
Rings (3D)1
Hydrophobic centres (3D)0
Anionic centres (3D)0
Cationic centres (3D)0

Shape and volume

ParameterValueUnit
3D volume119.70ų
Rotatable bonds2
Heavy atoms11

The TPSA interpretations and Lipinski's rule are empirical rules for small-molecule oral drugs (Lipinski 1997, Veber 2002, Kelder 1999). They are not an assessment of the absorption or toxicity of this substance — safety data are given in the Safety Data Sheet.

Source: PubChem Computed Properties, CID 7456

🛡️ Safety — CAS 99-76-3
Data limitations notice. The safety information on this page is for reference only and does not replace a full safety data sheet (SDS). Before using the product, consult the manufacturer's current safety data sheet and the GHS/CLP guidance. The CLP classification applies to the pure bulk substance, not to commercial formulations.

GHS/CLP classification — Regulation (EC) No 1272/2008 + UN GHS Rev. 9 (2021).

⚠ Warning
GHS07 — Irritant / harmful
GHS07 Irritant / harmful
GHS09 — Environmental hazard
GHS09 Environmental hazard

🚨 Hazard statements (H)

  • H336 — May cause drowsiness or dizziness
  • H402 — Harmful to aquatic life
  • H411 — Toxic to aquatic life with long lasting effects
  • H412 — Harmful to aquatic life with long lasting effects

🛡 Precautionary statements (P)

  • P261 — Avoid breathing dust/fume/gas/mist/vapours/spray
  • P264 — Wash thoroughly after handling
  • P271 — Use only outdoors or in a well-ventilated area
  • P280 — Wear protective gloves/protective clothing/eye protection/face protection
  • P302+P352 — IF ON SKIN: Wash with plenty of water
  • P304+P340 — IF INHALED: Remove person to fresh air and keep comfortable for breathing
  • P305+P351+P338 — IF IN EYES: Rinse cautiously with water for several minutes; Remove contact lenses, if present and easy to do. Continue rinsing
  • P312 — Call a POISON CENTER or doctor/physician if you feel unwell
  • P332+P313 — If skin irritation occurs: Get medical advice/attention
  • P337+P313 — If eye irritation persists: Get medical advice/attention
  • P403+P233 — Store in a well-ventilated place: Keep container tightly closed
  • P405 — Store locked up
  • P501 — Dispose of contents/container to an approved waste collection point

⚠ Classification based on a consensus of sources (PubChem / supplier notifications) — not verified against the harmonised classification in Annex VI (CLP). The scope of hazards may be broader than the official classification; verify against the supplier's current safety data sheet before use.

Translations: CLP Regulation (EC) 1272/2008, Annexes III and IV. Data: PubChem/NLM.

📚 Consolidated scientific references — Chicago Author-Date 10 sources

References collected from all Safety Hub tabs. CAS: 99-76-3 · PubChem ↗

  1. Parlament Europejski i Rada UE. 2008. "Regulation (EC) nr 1272/2008 w sprawie klasyfikacji, oznakowania i pakowania substancji (CLP)." Dz.Urz. UE L 353. [↗] GHS, Regulations
  2. United Nations Economic Commission for Europe (UNECE). 2021. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Ninth Revised Edition." United Nations, Geneva. [↗] GHS
  3. Goldfrank, Lewis R., Robert S. Hoffman, Mary Ann Howland, et al.. 2019. "Goldfrank's Toxicologic Emergencies, 11th ed.." McGraw-Hill Education, New York. ISBN 978-1-25-985961-8. First aid, Toxicology
  4. National Institute for Occupational Safety and Health (NIOSH). 2023. "NIOSH Pocket Guide to Chemical Hazards (DHHS Publ. 2005-149)." U.S. Department of Health and Human Services / CDC, Cincinnati, OH. [↗] First aid, PPE, Toxicology
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms." CEN, Brussels. [↗] PPE
  6. UNECE. 2023. "European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." United Nations, Geneva. [↗] Disposal, Regulations
  7. National Fire Protection Association (NFPA). 2022. "NFPA 400 — Hazardous Materials Code." NFPA, Quincy, MA. [↗] Storage
  8. Urben, P.G. (ed.). 2017. "Bretherick's Handbook of Reactive Chemical Hazards, 8th ed.." Butterworth-Heinemann / Elsevier, Oxford. [↗] Storage
  9. Ministerstwo Klimatu i Środowiska RP. 2023. "Baza danych o produktach i opakowaniach oraz o gospodarce odpadami (BDO)." Ministerstwo Klimatu i Środowiska, Warszawa. National rules — Poland [↗] Disposal
  10. International Agency for Research on Cancer (IARC / WHO). 2024. "IARC Monographs on the Identification of Carcinogenic Hazards to Humans — List of Classifications." WHO, Lyon. [↗] Toxicology

Tabs with their own references (Emergency, PPE, Storage, Waste) contain additional bibliographic entries within their respective sections.

📈 Analytical statistics (t-test · RSD · Grubbs · Q-Dixon) ICH Q2

Paste a series of replicate measurements (CSV, or one number per line). The calculator computes the mean, standard deviation and 95% CI, and detects outliers (Grubbs + Dixon Q).

Separator: comma, space, tab, new line. Minimum 3 measurements.
📐 Statistical formulas
  • x̄ = Σxᵢ / n — arithmetic mean
  • s² = Σ(xᵢ - x̄)² / (n-1) — sample variance
  • s = √s² — standard deviation
  • RSD% = (s / x̄) × 100% — relative standard deviation
  • CI₉₅ = x̄ ± t(0.05, n-1) × s / √n — Student's t
  • G = |xᵢ - x̄| / s — Grubbs' test
  • Q = |xsuspect - xnearest| / |xmax - xmin| — Dixon Q-test

Source: ICH Q2(R2) Validation of Analytical Procedures · ICH PDF ↗

🧪 Buffer Recipe Calculator UNIQUE
References: pKa values from Goldberg NIST 81 · CRC Handbook 100th ed. · Stoll & Blanchard 1990 (DOI)

Choose a buffer from the list of 20 popular systems → enter the target pH → get an exact recipe with the masses to weigh out.

Step 1: Choose a buffer system

📜 Recipe history (last 10)
📅 Project Planner — Lab Experiment Manager NEW

Plan your entire laboratory project: add experiments with reagents, replicates, and duration. You'll get a Gantt chart, a shopping list (with links to the store!), a budget with a 10% margin, and a GHS risk matrix.

🧪 Solubility and solvent compatibility
Molecule
Methylparaben
Formula
C8H8O3
logP (XLogP3)
2.00
Mass (g/mol)
152.15
Polarity
Hydrophobic (non-polar)

⚠️ GC estimate (Hoftyzer–Van Krevelen). No literature HSP data for this CAS — precision ±2 MPa½. Verify experimentally.

Solvent compatibility table not available for this substance.
The Hansen parameters fall outside the range of the method, so the distance Ra cannot be calculated, and the database holds no solubility measurement to put in its place. Rather than eleven ratings with nothing behind them, we show none. Base the solvent choice on the safety data sheet and on experimental data.
📚 Scientific references for solvents (Chicago Author-Date) — click to expand

11 solvents · 54 full citations (NIST/CRC/IARC/Hansen/Reichardt/Smallwood/Wypych/Armarego/Snyder/GESTIS) — below.

Water (H₂O)
  1. NIST — NIST Chemistry WebBook — Water (CAS 7732-18-5)
  2. CRC — CRC Handbook of Chemistry and Physics, 104th ed., Sec. 8 (Properties of Water)
  3. IAPWS — IAPWS Release on Static Dielectric Constant of Water
  4. Reichardt 2011 — Solvents and Solvent Effects in Organic Chemistry
  5. GESTIS — GESTIS Substance Database — Water
Ethanol (EtOH)
  1. NIST — NIST Chemistry WebBook — Ethanol (CAS 64-17-5)
  2. CRC — CRC Handbook — Ethanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — Ethanol eluotropic
  4. Smallwood — Handbook of Organic Solvent Properties — Ethanol
  5. GESTIS — GESTIS Substance Database — Ethanol
Methanol (MeOH)
  1. NIST — NIST Chemistry WebBook — Methanol (CAS 67-56-1)
  2. CRC — CRC Handbook — Methanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — MeOH eluotropic, eo=0.95
  4. GESTIS — GESTIS Substance Database — Methanol
Acetone
  1. NIST — NIST Chemistry WebBook — Acetone (CAS 67-64-1)
  2. CRC — CRC Handbook — Acetone physical & thermodynamic constants
  3. Hansen 2007 — Hansen Solubility Parameters — Acetone (dD=15.5, dP=10.4, dH=7.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Acetone
  5. GESTIS — GESTIS Substance Database — Acetone
Acetonitrile (ACN)
  1. NIST — NIST Chemistry WebBook — Acetonitrile (CAS 75-05-8)
  2. CRC — CRC Handbook — Acetonitrile constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — ACN gold-standard HPLC eluent
  4. Reichardt 2011 — Solvents and Solvent Effects — ACN dipolar aprotic
  5. GESTIS — GESTIS Substance Database — Acetonitrile
DMSO
  1. NIST — NIST Chemistry WebBook — DMSO (CAS 67-68-5)
  2. Wypych 2019 — Handbook of Solvents Vol. 1 — DMSO comprehensive properties
  3. Hansen 2007 — HSP — DMSO (dD=18.4, dP=16.4, dH=10.2)
  4. Reichardt 2011 — Solvents and Solvent Effects — DMSO E_T(30)=45.1, dipolar aprotic
  5. GESTIS — GESTIS Substance Database — DMSO
THF
  1. NIST — NIST Chemistry WebBook — THF (CAS 109-99-9)
  2. Armarego 2009 — Purification of Laboratory Chemicals — THF drying & peroxide test
  3. Hansen 2007 — Hansen Solubility Parameters — THF (dD=16.8, dP=5.7, dH=8.0)
  4. Smallwood — Handbook of Organic Solvent Properties — THF
  5. GESTIS — GESTIS Substance Database — Tetrahydrofuran
DCM (CH₂Cl₂)
  1. NIST — NIST Chemistry WebBook — Dichloromethane (CAS 75-09-2)
  2. IARC 71 — IARC Monograph 71 — DCM (Group 2A carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — DCM (dD=18.2, dP=6.3, dH=6.1)
  4. Reichardt 2011 — Solvents and Solvent Effects — DCM polarity index
  5. GESTIS — GESTIS Substance Database — Dichloromethane
Chloroform (CHCl₃)
  1. NIST — NIST Chemistry WebBook — Chloroform (CAS 67-66-3)
  2. IARC 73 — IARC Monograph 73 — Chloroform (Group 2B carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — CHCl3 (dD=17.8, dP=3.1, dH=5.7)
  4. Reichardt 2011 — Solvents and Solvent Effects — CHCl3 H-bond donor strength
  5. GESTIS — GESTIS Substance Database — Chloroform
n-Hexane
  1. NIST — NIST Chemistry WebBook — n-Hexane (CAS 110-54-3)
  2. ATSDR n-Hexane — ATSDR Toxicological Profile for n-Hexane — peripheral neuropathy (n-hexane is NOT an IARC carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — n-Hexane (dD=14.9, dP=0, dH=0)
  4. Snyder & Kirkland — Modern Liquid Chromatography — n-Hexane NP standard, eo=0.00
  5. GESTIS — GESTIS Substance Database — n-Hexane
Toluene
  1. NIST — NIST Chemistry WebBook — Toluene (CAS 108-88-3)
  2. IARC 71 — IARC Monograph 71 — Toluene
  3. Hansen 2007 — Hansen Solubility Parameters — Toluene (dD=18.0, dP=1.4, dH=2.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Toluene
  5. GESTIS — GESTIS Substance Database — Toluene
Solubility theory (applied in compatibility prediction):
  1. Yalkowsky, Samuel H., and Shri C. Valvani. 1980. "Solubility and Partitioning I: Solubility of Nonelectrolytes in Water." Journal of Pharmaceutical Sciences 69 (8): 912–922. https://doi.org/10.1002/jps.2600690814 — General Solubility Equation (GSE): logS = 0.5 − logP − 0.01(MP−25).
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. CRC Press. https://doi.org/10.1201/9781420006834 — HSP triplet (dD, dP, dH) + Ra formula.
  3. Stefanis, E., and C. Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." Int J Thermophys 29: 568–585. https://doi.org/10.1007/s10765-008-0415-z
  4. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Wiley-VCH. https://doi.org/10.1002/9783527632220 — E_T(30) polarity scale, solvatochromism.
  5. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Wiley. https://doi.org/10.1002/9780470508183 — Eluotropic series, polarity index.
  6. Van Krevelen, D. W., and K. Te Nijenhuis. 2009. Properties of Polymers. 4th ed. Elsevier. https://doi.org/10.1016/B978-0-08-054819-7.X0001-5 — Hoftyzer–Van Krevelen group contribution for dD/dP/dH from SMILES.
  7. Marcus, Yizhak. 1998. The Properties of Solvents. Wiley Series in Solution Chemistry, Vol. 4. ISBN 9780471983699 — Complete tabular set of 250+ solvents (ε, μ, donicity, acceptor numbers).
  8. PubChem Compound Database — CAS 99-76-3 lookup ↗ — logP (XLogP3), water solubility experimental + predicted.

Full bibliography in the REFERENCES accordion (at the bottom of the page) — Chicago Manual of Style 17th ed., Author-Date.

⚗️ Check reaction compatibility
1 0 0
Health: 1/4
Flammability: 0/4
Reactivity: 0/4
Per NFPA 704 / calculated from H-codes

Check whether Methylparaben is compatible with another reagent

📦 Storage compatibility matrix
Acids Bases Oxidizers Flammable Toxic Gazy
Acids ✓ ✗ ✗ ✗ ⚠ ✗
Bases ✗ ✓ ⚠ ⚠ ⚠ ⚠
Oxidizers ✗ ⚠ ✓ ✗ ⚠ ✗
Flammable ✗ ⚠ ✗ ✓ ⚠ ✗
Toxic ⚠ ⚠ ⚠ ⚠ ✓ ⚠
Gazy ✗ ⚠ ✗ ✗ ⚠ ✓
✓ Can be stored together · ⚠ Caution · ✗ Do NOT store together · OSHA Chemical Segregation ↗

Compatibility data from: Bretherick's Handbook (7th ed.) ↗, GESTIS ↗, ECHA REACH ↗, NFPA 704 ↗

🧮 Laboratory calculators (8)
Dilution (C₁V₁=C₂V₂)
Molarity (M=n/V)
pH Buffer (Henderson-Hasselbalch)
Beer-Lambert (A=εcl)
Mass → Moles
Concentration % → M
ppm → mg/L
Temperature C↔F↔K

Verified formulas: IUPAC Gold Book ↗, DOI ↗

📊 Spectroscopic Databases
📋 Laboratory protocol generator

Protocol generated based on: GHS SDS, Aldrich Lab Guide ↗

🏷️ Label generator (QR)
Methylparaben• Methyl 4-hydroxybenzoate / Nipagin• IUPAC: methyl 4-hydroxybenzoate• CAS: 99-76-3• EC: 202-785-7• Formula: C8H8O3• Mass: 152.15 g/molWARNINGGHS HAZARD STATEMENTS:(supplier self-classification — non-binding)H315 H319 H335P302+P352 P304+P340 P305+P351+P338 P332+P313 P337+P313 P312 P280P501 P403+P233 P405 P261 P264 P271Nonsensia Ltd124-128 City Road, EC1V 2NX Londonpure@molgod.orgmolgod.orgBatch No.: Net Mass:
🧪 Solution preparation assistant (Smart Prep)

Enter what you want to prepare — I'll generate an SOP

Examples below — click to insert:
Preset recipes:
📚 Scientific literature overview — CAS 99-76-3
⭐ Key findings (scientific literature) 7 publications
🏆 CAS 99-76-3 — multi-criteria ranking (W12): 30% citations · 20% recency · 20% topic · 15% historical · 15% open access.
  1. #1
    Zhang HE, Xiao ML, Ji JJ et al. (2025) · BMC neurology
    Why it matters: Recent (2025) · open access
    SCORE 7.05 Mechanism Open Access DOI ↗ PubMed ↗
  2. #2
    Pippalla S, Nekkalapudi AR, Komreddy VR (2024) · Biomedical chromatography : BMC
    Why it matters: Recent (2024) · open access
    SCORE 7.05 Analytics Open Access DOI ↗ PubMed ↗
  3. #3
    Zhu T, Luo W, Zhang Y et al. (2025) · Ecotoxicology and environmental safety
    Why it matters: Recent (2025) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  4. #4
    Pereira AR, Gomes IB (2024) · Journal of hazardous materials
    Why it matters: Recent (2024) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  5. #5
    Nowak K, Jabłońska E, Garley M et al. (2021) · Molecular and cellular endocrinology
    Why it matters: Open access
    SCORE 5.55 Mechanism Open Access DOI ↗ PubMed ↗
  6. #6
    Liu H, Xu X, Du L et al. (2026) · Environmental science & technology
    Why it matters: Recent (2026)
    SCORE 4.8 Mechanism DOI ↗ PubMed ↗
  7. #7
    Hu C, Sun B, Tang L et al. (2022) · Aquatic toxicology (Amsterdam, Netherlands)
    Why it matters: Selected by multi-criteria score (citations + recency + topic + historical + OA).
    SCORE 3.6 Pharmacology DOI ↗ PubMed ↗

Why this page can be checked

Identity

CAS, EC and molecular formula, resolved across the identifier systems a buyer uses. The count of systems resolved is shown, so you can see how well characterised this substance is rather than assuming.

Data

Every physicochemical value carries the source it came from and the date that source was read. Open any of them.

Classification

Read against the harmonised entry where one exists, with the index number stated. Self-classification is shown separately and labelled.

Regulatory

Inventory, restriction, authorisation and candidate-list status, each stated individually. Where a status is not established, this page says so — it never says no restrictions apply.

Documentation

Which documents exist, at what review level, in which languages, and when each was issued.

Supplier

Who is selling this, and what they have published about themselves.

Nothing on this page is a certification. It is a record you can audit.

Two guarantees, both with their limits stated

The Gap Report Guarantee

If the available evidence cannot support a defensible document for your CAS number and product specification, we will not invent the missing values. You receive a documented gap report and choose: a refund, store credit, or the report on its own.

A visible gap is worth more than a plausible number, because the plausible number is the one that fails when somebody checks it.

The Re-issue Promise

If a signed card is rejected by an authority or by a customer’s compliance officer on one of the points we checked and reported as passed, we re-issue it corrected at no charge and credit the original fee.

This covers the checks we performed and named. It does not cover registration status, tonnage, or your role in the supply chain — those are not ours to hold, and a guarantee that pretended otherwise would be worth nothing.

Methyl 4-hydroxybenzoate — CAS 99-76-3, 5ml. Prepared from the supplier’s public catalogue; not verified against their internal data.

📄 Certificates of Analysis (CoA) CAS 99-76-3 none

No certificates for this product in the database.

📚 Scientific references (Chicago Author-Date) — click to expand

Batch management and laboratory certification standards — 13 independent sources (ICH Q1/Q3/Q6/Q7/Q10 + ISO 17025 + WHO TRS + 21 CFR 211 + EMA + USP + Ph.Eur. + PIC/S + IPEC-PQG).

  1. International Council for Harmonisation (ICH). 2000. "Q7 Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients." ICH Expert Working Group. [link ↗] — GMP for APIs — adopted by EMA, FDA, MHLW
  2. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories." ISO. [link ↗] — Lab accreditation standard underpinning every CoA
  3. World Health Organization. 2010. "WHO Good Manufacturing Practices for Pharmaceutical Products: Main Principles (WHO Technical Report Series No. 957, Annex 3)." WHO Press. [link ↗] — WHO TRS No. 957 — global reference for GMP
  4. International Council for Harmonisation (ICH). 2003. "ICH Q1A(R2): Stability Testing of New Drug Substances and Products." International Council for Harmonisation. [link ↗] — Source for batch shelf-life and retest dating
  5. International Council for Harmonisation (ICH). 2006. "ICH Q3A(R2): Impurities in New Drug Substances." ICH. [link ↗]
  6. International Council for Harmonisation (ICH). 1999. "ICH Q6A: Specifications for New Drug Substances and Products." ICH. [link ↗] — CoA acceptance-criteria specification standard
  7. International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. [link ↗]
  8. U.S. Food and Drug Administration. 2024. "21 CFR Part 211: Current Good Manufacturing Practice for Finished Pharmaceuticals." US Code of Federal Regulations. [link ↗] — US legal mandate (Subpart J — Records and Reports)
  9. European Medicines Agency. 2014. "Guideline on Process Validation for Finished Products — Information and Data to Be Provided EMA/CHMP/CVMP/QWP/BWP/70278/2012." European Medicines Agency. [link ↗]
  10. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. [link ↗]
  11. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. [link ↗]
  12. Pharmaceutical Inspection Co-operation Scheme (PIC/S). 2021. "Guide to Good Manufacturing Practice for Medicinal Products PE 009-15." PIC/S Secretariat, Geneva. [link ↗] — Cross-recognized GMP for 54 inspectorates worldwide
  13. International Pharmaceutical Excipients Council (IPEC) and Pharmaceutical Quality Group (PQG). 2017. "Joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients." IPEC-Americas. [link ↗] — Excipient-grade CoA standard for non-API ingredients
📜 Patents (public metadata) no data

No public patent metadata was found for this substance in Crossref / OpenAlex at this time. Data will be updated automatically after the next cache refresh (24h).

📚 References (Chicago Author-Date) — click to expand
  1. Liu H, Xu X, Du L et al.. (2026). "Unraveling the Mechanisms of Osteoporosis Triggered by Methylparaben and Monomethyl Phthalate through Integrated Mendelian Randomization, In Silico Simulations, and Experimental Validation.". Environmental science & technology. https://doi.org/10.1021/acs.est.5c12267
  2. Zhu T, Luo W, Zhang Y et al.. (2025). "Methylparaben and propylparaben promote bladder cancer invasion via MMP2 and PPARG modulation.". Ecotoxicology and environmental safety. https://doi.org/10.1016/j.ecoenv.2025.119383
  3. Zhang HE, Xiao ML, Ji JJ et al.. (2025). "Integrating machine learning and experiments to elucidate the potential molecular mechanisms of methylparaben-induced Alzheimer's disease: evidence from a Tau hyperphosphorylation cell model.". BMC neurology. https://doi.org/10.1186/s12883-025-04582-x
  4. Yang Y, Wang Y, Sun Y. (2025). "Combining Mendelian randomization and network toxicology to decipher the causal role and molecular mechanisms of environmental pollutants in breast cancer: A focus on Methyl-4-hydroxybenzoate.". Cancer epidemiology. https://doi.org/10.1016/j.canep.2025.102953
  5. da Silveira FFCL, Porto VA, de Sousa BLC et al.. (2024). "Bioaccumulation and ecotoxicity of parabens in aquatic organisms: Current status and trends.". Environmental pollution (Barking, Essex : 1987). https://doi.org/10.1016/j.envpol.2024.125213
  6. Pippalla S, Nekkalapudi AR, Komreddy VR. (2024). "A validated stability‐indicating reversed‐phase‐UPLC method for simultaneous estimation of promethazine hydrochloride, methylparaben, propylparaben and sodium benzoate assay of cough suppressant and antihistamine liquid oral dosage forms.". Biomedical chromatography : BMC. https://doi.org/10.1002/bmc.5944
  7. Huang H, Huang C, Li Y et al.. (2024). "Methyl Paraben Affects Porcine Oocyte Maturation Through Mitochondrial Dysfunction.". Biomolecules. https://doi.org/10.3390/biom14111466
  8. Pereira AR, Gomes IB. (2024). "The effects of methylparaben exposure on biofilm tolerance to chlorine disinfection.". Journal of hazardous materials. https://doi.org/10.1016/j.jhazmat.2024.134883
  9. Mao W, Qu J, Zhong S et al.. (2023). "Associations between urinary parabens and lung cancer.". Environmental science and pollution research international. https://doi.org/10.1007/s11356-023-26953-y
  10. Hu C, Sun B, Tang L et al.. (2022). "Hepatotoxicity caused by methylparaben in adult zebrafish.". Aquatic toxicology (Amsterdam, Netherlands). https://doi.org/10.1016/j.aquatox.2022.106255
  11. Nowak K, Jabłońska E, Garley M et al.. (2021). "Methylparaben-induced regulation of estrogenic signaling in human neutrophils.". Molecular and cellular endocrinology. https://doi.org/10.1016/j.mce.2021.111470
  12. Kolatorova L, Sramkova M, Vitku J et al.. (2018). "Parabens and their relation to obesity.". Physiological research. https://doi.org/10.33549/physiolres.934004
  13. Soni MG, Taylor SL, Greenberg NA et al.. (2002). "Evaluation of the health aspects of methyl paraben: a review of the published literature.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/s0278-6915(02)00107-2
  14. World Intellectual Property Organization. 2024. "Patent Cooperation Treaty (PCT)." https://www.wipo.int/pct/.
  15. U.S. Patent and Trademark Office. 2024. "USPTO Patent Public Search." https://ppubs.uspto.gov/.
  16. European Patent Office. 2024. "Espacenet Patent Search." https://worldwide.espacenet.com/.
  17. Newman, David J., and Gordon M. Cragg. 2020. "Natural Products as Sources of New Drugs over the Nearly Four Decades from 01/1981 to 09/2019." Journal of Natural Products 83 (3): 770-803.
  18. Davies, Mark, Michał Nowotka, George Papadatos, et al. 2015. "ChEMBL Web Services: Streamlining Access to Drug Discovery Data and Utilities." Nucleic Acids Research 43 (W1): W612-W620.
  19. Bickerton, G. Richard, Gaia V. Paolini, Jérémy Besnard, Sorel Muresan, and Andrew L. Hopkins. 2012. "Quantifying the Chemical Beauty of Drugs." Nature Chemistry 4 (2): 90-98.
  20. Meanwell, Nicholas A. 2011. "Synopsis of Some Recent Tactical Application of Bioisosteres in Drug Design." Journal of Medicinal Chemistry 54 (8): 2529-2591.
  21. Ertl, Peter, and Ansgar Schuffenhauer. 2009. "Estimation of Synthetic Accessibility Score of Drug-Like Molecules Based on Molecular Complexity and Fragment Contributions." Journal of Cheminformatics 1: 8.
  22. Hopkins, Andrew L., and Colin R. Groom. 2002. "The Druggable Genome." Nature Reviews Drug Discovery 1 (9): 727-730.
  23. Allison, John R., and Mark A. Lemley. 1998. "Empirical Evidence on the Validity of Litigated Patents." AIPLA Quarterly Journal 26 (3): 185-275.
  24. Patani, George A., and Edmond J. LaVoie. 1996. "Bioisosterism: A Rational Approach in Drug Design." Chemical Reviews 96 (8): 3147-3176.
  25. Lerner, Josh. 1994. "The Importance of Patent Scope: An Empirical Analysis." RAND Journal of Economics 25 (2): 319-333.

REST: /wp-json/molgod/v1/patents/99-76-3?status=active&limit=10

Data from PubChemSource: PubChem (NIH) · ChEMBL
📤 Embed this molecule on your site

Have a blog, forum or scientific service? Embed the interactive 3D molecule on your website — every reader will see it, a poniżej ma link do pełnego rekordu molekuły na MolGod.org.

🔗 HTML iframe code (easiest — works everywhere)

Copy and paste into your site's HTML editor:

Adjust width and height to your layout.

⚙ WordPress Shortcode (for other shops with MOL-GOD)

🌐 Direct link (for emails, chats, LinkedIn, Twitter)

LinkedIn Twitter/X Facebook
QR code CAS 99-76-3

📱 QR code (for printing on flyers / labels / catalogs)

Place it in a product catalog, on a bottle label or a flyer. The customer scans it — sees the 3D molecule on their phone, with a link to your shop.

⬇ Download PNG

🖼 Open Graph image (for social media meta tags)

When you share the link, Facebook/LinkedIn/Discord will automatically fetch the image preview:

Preview
📋 License: The embed keeps a backlink to MolGod (required — the shop is the data source). Chemical data comes from PubChem (CC0 — public domain). The embed is FREE for educational, commercial and hobby use.
📚 REFERENCES (Aggregate bibliography, Chicago Author-Date) 77 items

All scientific sources cited in the accordions above for CAS 99-76-3. Format: Chicago Manual of Style 17th ed., Author-Date system.

🗄️ Scientific databases

  1. NIST. n.d. NIST Chemistry WebBook: CAS 99-76-3. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=99-76-3.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 99-76-3. Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology. https://sdbs.db.aist.go.jp/.
  3. Linstrom, Peter J., and William G. Mallard, eds. n.d. NIST Chemistry WebBook: NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. https://doi.org/10.18434/T4D303.
  4. PubChem. n.d. PubChem Compound Summary: CAS 99-76-3. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=99-76-3.

📐 Standards / Guidelines

  1. ICH. 2003. "Stability Testing of New Drug Substances and Products: Q1A(R2)." Geneva: International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf.
  2. National Fire Protection Association (NFPA). 2024. "NFPA 30: Flammable and Combustible Liquids Code." NFPA, Quincy, MA. https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=30.
  3. Occupational Safety and Health Administration (OSHA). 2023. "29 CFR 1910.106 — Flammable Liquids." U.S. Department of Labor, Federal Register. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.106.
  4. European Chemicals Agency (ECHA). 2024. "Annex VI to Regulation (EC) No 1272/2008 (CLP) — Harmonised Classification and Labelling." ECHA, Helsinki / Official Journal of the European Union. https://echa.europa.eu/regulations/clp/clp-classification.
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms — Part 1: Terminology and performance requirements for chemical risks." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=205:110:::::FSP_PROJECT,FSP_ORG_ID:38536,6080&cs=1B0DAA8B85DF42E4A2C70E5D71F0BFA32.
  6. European Committee for Standardization (CEN). 2001. "EN 166:2001 — Personal eye-protection — Specifications." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:6541&cs=1F1A4E0A78C4DB6A28DBE2E8C29D89DCF.
  7. European Committee for Standardization (CEN). 2009. "EN 14605:2005+A1:2009 — Protective clothing against liquid chemicals — Performance requirements for clothing with liquid-tight (Type 3) or spray-tight (Type 4) connections." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:21581&cs=1A04A2D3C7CC58E9E6CB58D55F7EBFB7E.
  8. National Institute for Occupational Safety and Health (NIOSH). 2017. "Recommendations for Chemical Protective Clothing: A Companion to the NIOSH Pocket Guide." U.S. Department of Health & Human Services / CDC. https://www.cdc.gov/niosh/ncpc/default.html.
  9. Occupational Safety and Health Administration (OSHA). 2011. "Personal Protective Equipment — General requirements." U.S. Department of Labor — 29 CFR 1910.132. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.132.

📖 Books

  1. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook, 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/Hansen-Solubility-Parameters-A-Users-Handbook/Hansen/p/book/9780849372483.
  2. Barton, Allan F. M. 1991. CRC Handbook of Solubility Parameters and Other Cohesion Parameters: 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/CRC-Handbook-of-Solubility-Parameters-and-Other-Cohesion-Parameters/Barton/p/book/9780849301766.
  3. Connors, Kenneth A., Gordon L. Amidon, and Valentino J. Stella. 1986. Chemical Stability of Pharmaceuticals: A Handbook for Pharmacists, 2nd ed.. New York: Wiley. https://openlibrary.org/isbn/9780471879558.
  4. Rumble, John R., ed. 2019. CRC Handbook of Chemistry and Physics: 100th Edition. Boca Raton, FL: CRC Press. https://hbcp.chemnetbase.com/.
  5. Urben, Peter G. 2017. Bretherick's Handbook of Reactive Chemical Hazards, 8th Edition. Academic Press / Elsevier, Oxford. https://www.sciencedirect.com/book/9780081010594.

📄 Scientific articles (peer-reviewed)

  1. Stefanis, Emmanuel, and Costas Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." International Journal of Thermophysics 29: 568-585. https://doi.org/10.1007/s10765-008-0415-z.
  2. Stoll, Vincent S., and John S. Blanchard. 1990. "Buffers: Principles and Practice: In Methods in Enzymology, vol. 182." San Diego: Academic Press. https://doi.org/10.1016/0076-6879(90)82008-P.

🌐 Websites

  1. ECHA. 2023. "Guidance on the Application of the CLP Criteria." European Chemicals Agency. https://echa.europa.eu/guidance-documents/guidance-on-clp.
  2. European Parliament. 2006. "Regulation (EC) No 1907/2006 (REACH)." Official Journal of the European Union L 396: 1–849.
  3. ECHA. 2023. "Candidate List of Substances of Very High Concern for Authorisation." European Chemicals Agency. https://echa.europa.eu/candidate-list-table.
  4. European Parliament. 2008. "Regulation (EC) No 1272/2008 on Classification, Labelling and Packaging of Substances and Mixtures (CLP)." Official Journal of the European Union L 353: 1–1355.
  5. ECHA. 2017. "Guidance on the Compilation of Safety Data Sheets." Version 3.1. European Chemicals Agency. ECHA-17-G-01-EN. https://echa.europa.eu/documents/10162/23047722/sds_en.pdf.
  6. ECHA. 2022. "Restrictions Under REACH — Annex XVII." European Chemicals Agency. https://echa.europa.eu/substances-restricted-under-reach.
  7. United Nations. 2021. Globally Harmonized System of Classification and Labelling of Chemicals (GHS). 9th revised ed. ST/SG/AC.10/30/Rev.9. New York and Geneva: United Nations. https://unece.org/ghs-rev9-2021.
  8. ECHA. 2020. "Understanding REACH." European Chemicals Agency. https://echa.europa.eu/regulations/reach/understanding-reach.
  9. United States Pharmacopeial Convention. 2024. "USP <621> Chromatography." In United States Pharmacopeia and National Formulary, USP 47-NF 42. Rockville, MD: USP. https://www.uspnf.com/.
  10. European Pharmacopoeia Commission. 2024. "2.2.46 Chromatographic Separation Techniques." In European Pharmacopoeia, 11th ed. Strasbourg: Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  11. International Council for Harmonisation (ICH). 2022. "ICH Q2(R2): Validation of Analytical Procedures." International Council for Harmonisation. https://database.ich.org/sites/default/files/ICH_Q2%28R2%29_Guideline_2022_1130.pdf.
  12. International Council for Harmonisation (ICH). 1996. "ICH Q3A: Impurities in New Drug Substances." International Council for Harmonisation. https://database.ich.org/sites/default/files/Q3A%28R2%29%20Guideline.pdf.
  13. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories." Geneva: ISO. https://www.iso.org/standard/66912.html.
  14. Kolthoff, Izaak Maurits, and Philip J. Elving, eds. 1978. Treatise on Analytical Chemistry, Part I: Theory and Practice. 2nd ed. New York: Wiley-Interscience.
  15. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2018. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning.
  16. Christian, Gary D., Purnendu K. Dasgupta, and Kevin A. Schug. 2014. Analytical Chemistry. 7th ed. Hoboken, NJ: Wiley.
  17. EURACHEM/CITAC. 2012. "Quantifying Uncertainty in Analytical Measurement." 3rd ed. EURACHEM/CITAC Guide CG 4. https://www.eurachem.org/images/stories/Guides/pdf/QUAM2012_P1.pdf.
  18. International Organization for Standardization. 1994. "ISO 5725-2:1994 Accuracy (Trueness and Precision) of Measurement Methods and Results — Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method." Geneva: ISO. https://www.iso.org/standard/11834.html.
  19. Heckert, N. A., and J. J. Filliben. 2003. "NIST/SEMATECH e-Handbook of Statistical Methods." NIST Handbook 151. Gaithersburg, MD: National Institute of Standards and Technology. https://www.itl.nist.gov/div898/handbook/.
  20. Grubbs, Frank E. 1950. "Sample Criteria for Testing Outlying Observations." Annals of Mathematical Statistics 21 (1): 27–58.
  21. Dixon, Wilfrid J. 1950. "Analysis of Extreme Values." Annals of Mathematical Statistics 21 (4): 488–506.
  22. Snedecor, George W., and William G. Cochran. 1989. Statistical Methods. 8th ed. Ames, IA: Iowa State University Press.
  23. Student [William Sealy Gosset]. 1908. "The Probable Error of a Mean." Biometrika 6 (1): 1–25.
  24. International Organization for Standardization. 2005. "ISO 3534-1:2006 Statistics — Vocabulary and Symbols — Part 1: General Statistical Terms and Terms Used in Probability." Geneva: ISO. https://www.iso.org/standard/40145.html.
  25. Thompson, Michael, Stephen L. R. Ellison, and Roger Wood. 2002. "Harmonized Guidelines for Single-Laboratory Validation of Methods of Analysis." Pure and Applied Chemistry 74 (5): 835–855.
  26. United Nations Economic Commission for Europe. 2024. European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR), Applicable as from 1 January 2025 (ECE/TRANS/352). Geneva: UNECE. https://unece.org/transport/dangerous-goods/adr-2025-edition.
  27. International Air Transport Association. 2026. Dangerous Goods Regulations (DGR). 67th ed. Montreal: IATA. https://www.iata.org/en/programs/cargo/dgr/.
  28. International Maritime Organization. 2024. International Maritime Dangerous Goods (IMDG) Code, 2024 Edition (Amendment 42-24). London: IMO. https://www.imo.org/en/OurWork/Safety/Pages/DangerousGoods-default.aspx.
  29. United Nations. 2025. Recommendations on the Transport of Dangerous Goods: Model Regulations (Orange Book). 24th revised ed. ST/SG/AC.10/1/Rev.24. New York and Geneva: United Nations. https://unece.org/transport/dangerous-goods/un-model-regulations.
  30. International Civil Aviation Organization. 2025. Technical Instructions for the Safe Transport of Dangerous Goods by Air (Doc 9284). 2025–2026 ed. Montreal: ICAO. https://www.icao.int/safety/DangerousGoods/Pages/technical-instructions.aspx.
  31. European Commission. 2014. "Commission Decision 2014/955/EU on the list of waste pursuant to Directive 2008/98/EC." Official Journal of the European Union. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32014D0955.
  32. Ministerstwo Klimatu i Środowiska Rzeczypospolitej Polskiej. 2020. "Rozporządzenie Ministra Klimatu z dnia 2 stycznia 2020 r. w sprawie katalogu odpadów." Dziennik Ustaw RP 2020 poz. 10. https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WDU20200000010. National rules — Poland
  33. Główny Inspektorat Ochrony Środowiska (GIOŚ). 2024. "Baza Danych O Odpadach (BDO) — System rejestracji firm utylizacyjnych." Ministerstwo Klimatu i Środowiska. https://bdo.mos.gov.pl/. National rules — Poland
  34. Polska — Sejm RP. 2012. "Ustawa z dnia 14 grudnia 2012 r. o odpadach." Dz.U. 2013 poz. 21 (z późn. zm.). https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WDU20130000021. National rules — Poland
  35. Furr, A. Keith, ed.. 2000. "CRC Handbook of Laboratory Safety." CRC Press.
  36. Pohanish, Richard P.. 2017. "Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens." Elsevier.
  37. Lewis, Richard J.. 2012. "Sax's Dangerous Properties of Industrial Materials." Wiley.
  38. NIOSH. 2024. "Pocket Guide to Chemical Hazards." U.S. Department of Health and Human Services. https://www.cdc.gov/niosh/npg/.
  39. OSHA. 2024. "Occupational Chemical Database — Hazardous Waste Operations (HAZWOPER)." Occupational Safety and Health Administration. https://www.osha.gov/chemicaldata.
  40. European Parliament and Council. 2008. "Directive 2008/98/EC on waste (Waste Framework Directive)." Official Journal of the European Union L 312/3. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32008L0098.
  41. European Parliament and Council. 2009. "Regulation (EC) No 1272/2008 (CLP) on classification, labelling and packaging of substances and mixtures." Official Journal of the European Union L 353. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32008R1272.
  42. United Nations Economic Commission for Europe (UNECE). 2023. "European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." UNECE. https://unece.org/transport/standards/transport/dangerous-goods/adr-2025.
  43. IPCS INCHEM. 2024. "International Programme on Chemical Safety — Waste Management Guidelines." WHO/UNEP/ILO. https://www.inchem.org/.
  44. European Parliament and Council. 2006. "Regulation (EC) No 1013/2006 on Shipments of Waste." Official Journal of the European Union L 190: 1–98. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32006R1013.
  45. International Council for Harmonisation (ICH). 2000. "Q7 Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients." ICH Expert Working Group. https://database.ich.org/sites/default/files/Q7%20Guideline.pdf.
  46. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories." ISO. https://www.iso.org/standard/66912.html.
  47. World Health Organization. 2010. "WHO Good Manufacturing Practices for Pharmaceutical Products: Main Principles (WHO Technical Report Series No. 957, Annex 3)." WHO Press. https://www.who.int/publications/m/item/trs957-annex3.
  48. International Council for Harmonisation (ICH). 2003. "ICH Q1A(R2): Stability Testing of New Drug Substances and Products." International Council for Harmonisation. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf.
  49. International Council for Harmonisation (ICH). 2006. "ICH Q3A(R2): Impurities in New Drug Substances." ICH. https://database.ich.org/sites/default/files/Q3A%28R2%29%20Guideline.pdf.
  50. International Council for Harmonisation (ICH). 1999. "ICH Q6A: Specifications for New Drug Substances and Products." ICH. https://database.ich.org/sites/default/files/Q6A%20Guideline.pdf.
  51. International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. https://database.ich.org/sites/default/files/Q10%20Guideline.pdf.
  52. U.S. Food and Drug Administration. 2024. "21 CFR Part 211: Current Good Manufacturing Practice for Finished Pharmaceuticals." US Code of Federal Regulations. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-C/part-211.
  53. European Medicines Agency. 2014. "Guideline on Process Validation for Finished Products — Information and Data to Be Provided EMA/CHMP/CVMP/QWP/BWP/70278/2012." European Medicines Agency. https://www.ema.europa.eu/en/documents/scientific-guideline/guideline-process-validation-finished-products-information-data-be-provided-regulatory-submissions-revision-1_en.pdf.
  54. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. https://www.uspnf.com/.
  55. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  56. Pharmaceutical Inspection Co-operation Scheme (PIC/S). 2021. "Guide to Good Manufacturing Practice for Medicinal Products PE 009-15." PIC/S Secretariat, Geneva. https://picscheme.org/en/publications.
  57. International Pharmaceutical Excipients Council (IPEC) and Pharmaceutical Quality Group (PQG). 2017. "Joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients." IPEC-Americas. https://ipecamericas.org/sites/default/files/IPECPQGGMPGuide2017.pdf.
📥 Download BibTeX📥 Download RISImport into Zotero/Mendeley/EndNote/Papers.
📜 License & provenance
COMPUTED — PubChem3D · 3D conformer computed by PubChem using OMEGA; not an experimental structure.
Model
Methylparaben · 99-76-3
InChIKey
LXCFILQKKLGQFO-UHFFFAOYSA-N
License
CC BY-SA 4.0 International
Attribution
MolGod Scientific — Methylparaben (CAS 99-76-3)
License & provenance record
Methylparaben (CAS 99-76-3) →
MolGod molecule record
Methylparaben →
Source data
PubChem CID 7456 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
6446c7091c4e4e43566a5c741a6ecb1d787ffed15ca9689b364ce872eb23dd55
MD5 (STL)
fc971d0e9c4d1ac426f0b67d4a8bf679
MolGod Identification Number
MG_564-845-489-87
Transformation
MolGod Scientific ball-and-stick mesh
Changes
Converted into a triangulated molecular mesh; atomic coordinates and connectivity unchanged.
Wikimedia Commons
not published yet
Free printable molecule model
Download the model, print it and use it in education. When you publish a photo, a material or an adaptation, the CC BY-SA 4.0 International licence requires you to credit “MolGod Scientific” as the author of the model, link to the original and to the licence text, indicate any changes you made and share adaptations under the same licence. A ready-to-use attribution text is in this section. No sign-up, no fees and no obligation to leave a review.

This license applies to the MolGod-created STL mesh, not automatically to third-party source material.