ethylene — label CAS 74-85-1

ethylene (CAS 74-85-1) — Safety Data Sheet

We already hold the harmonised entry for this substance.

  • CAS: 74-85-1
  • Annex VI index number: 601-010-00-3
  • 3 hazard classes: Flam. Gas 1, Press. Gas, STOT SE 3
  • Hazard statements: H220, H336

We have not issued a safety data sheet for it yet.

Get the full details for CAS 74-85-1

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Download Safety Data Sheet (PDF)CAS 74-85-1 · PDF · 172 KBWorking draft — not yet reviewed and approved.

Section 9 — physicochemical properties: 13 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.

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3D model Ethylene, CAS 74-85-1, molecular formula C2H4, molar mass 28.05 g/mol

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📊 Physicochemical data — CAS 74-85-1
📊 Physicochemical properties

Quick Reference

Formula: C2H4
MW: 28.05 g/mol
CAS: 74-85-1
Appearance: Colorless gas
Odour: Sweet
🔬 Advanced Properties

Chemical Identifiers

SMILES: C=C

Last updated: 2026-09-04

Chemical Overview: Ethylene
Molecular formulaC2H4[1]
Molecular weight28.05 g/mol[1]
Melting point-169.11 °C[1][2][3]
Boiling point-103.72 °C[1][2][3]
LogP (lipophilicity)1.2[1]
IUPAC nameethene[1]
SMILESC=C[1]
InChIKeyVGGSQFUCUMXWEO-UHFFFAOYSA-N[1]

Synonyms: ETHYLENE · Ethene · Acetene · Elayl · Olefiant gas

Data sources: PubChem (NLM/NIH)
Last updated: 2026-10-11

📚 Scientific references (Chicago Author-Date) (3 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ applies to: Molecular formula · Molecular weight · Melting point · Boiling point · LogP (lipophilicity) · IUPAC name · SMILES · InChIKey
  2. DECHEMA, PTB, and BAM. CHEMSAFE - Database of Evaluated Safety Characteristics for the Avoidance of Explosions. Frankfurt am Main: DECHEMA e.V.; Braunschweig/Berlin: Physikalisch-Technische Bundesanstalt and Bundesanstalt fur Materialforschung und -prufung. ↗ applies to: Melting point · Boiling point
  3. NIST. Chemistry WebBook, SRD 69. National Institute of Standards and Technology. ↗ applies to: Melting point · Boiling point
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
74-85-1
Molecular formula
C2H4
Molar mass
28.05 g/mol
IUPAC name (EN)
ethene
SMILES
C=C
InChIKey
VGGSQFUCUMXWEO-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. wrzenia
-104.2
Temp. topnienia
-169.4
Density
0.569

Source: PubChem, NIST WebBook. Last updated: 2026-09-04

🔍 External identifiers
13 of 16 ID systems81%
DatabaseIdentifierActions
CAS Registry Number74-85-1Open →
PubChem CID6325[1]Open →
InChIKeyVGGSQFUCUMXWEO-UHFFFAOYSA-N[1]Open →
InChIInChI=1S/C2H4/c1-2/h1-2H2[1]
SMILESC=C[1]
EC Number200-815-3[2]Open →
ChEMBLCHEMBL117822[3]Open →
KEGG CompoundC06547Open →
HMDBHMDB0029594Open →
ChemSpider6085[4]Open →
MeSH UID (NLM)C036216Open →
UNII (FDA)91GW059KN7Open →
WikiData QIDQ151313Open →

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 · InChI · 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

Further reading

Publications thematically related to this CAS. They are not the source of any value shown on this card.

Extended Bibliography (1)

  1. ★★☆☆☆ Crossref 🔓 OPEN ❓ unverified Anonymous. "All-Plastic Supercapacitors from Poly(ethylene terephthalate) Waste.". https://doi.org/10.1021/acs.energyfuels.5c03370.s001. link [accessed: 2026-09-04]
📡 Spectroscopy — CAS 74-85-1
📊 Spectra (NMR, IR, MS, UV-Vis) (1)

Available spectrum types: IR

IR spectrum (KBr, 4000-400 cm⁻¹)

446 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 formulaC2H4
Molar mass28.05g/mol
Exact mass28.0313001276Da
Monoisotopic mass28.0313001276Da
Topological polar surface area (TPSA)0Ų
XLogP31.2000
Complexity index0
Hydrogen bond donors0
Hydrogen bond acceptors0
Rotatable bonds0
Heavy atoms2
Stereocentres (atoms)0
Stereocentres (bonds)0
3D volume31.7000ų
Number of 3D conformers1
Conformer model RMSD0.4000Å
Effective 3D rotors0
H-bond acceptors (3D)0
H-bond donors (3D)0
Rings (3D)0
Hydrophobic centres (3D)2
Steric quadrupole 3D (X/Y/Z)1.06 / 0.62 / 0.62Ų

Source: PubChem Computed Properties, CID 6325

❓ Frequently asked questions (8)
What is Ethylene?
Ethylene (CAS 74-85-1) is a chemical compound with the molecular formula C2H4 and a molecular weight of 28.05 g/mol. The chemical data comes from PubChem (National Institutes of Health, USA).
Helpful?
What is the CAS number of Ethylene?
The CAS number for Ethylene is 74-85-1. 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 Ethylene?
The molecular formula of Ethylene is C2H4. Its molecular weight is 28.05 g/mol.
Helpful?
What is the melting point of Ethylene?
The melting point of Ethylene is -169.4.
Helpful?
What is the boiling point of Ethylene?
The boiling point of Ethylene is -104.2.
Helpful?
What is the density of Ethylene?
The density of Ethylene is 0.569.
Helpful?
Is Ethylene hazardous?
Ethylene has a harmonised EU classification (CLP Regulation, Annex VI, index no. 601-010-00-3): H220, H336. Read the safety data sheet before use and follow the handling precautions it states.
Helpful?
How should Ethylene be stored?
Ethylene 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: 6325

🔄 Concentration unit converter LIVE

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

MW: 28.05 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...

Computational chemistry

Molecular descriptors

ParameterValueUnit
XLogP3 (lipophilicity)1.20
lipophilic (prefers organic phase)
Topological polar surface area (TPSA)0.00Ų
low polarity, good blood-brain barrier penetration
Complexity index0.0
Formal charge0
neutral molecule

Lipinski's Rule of Five

CriterionValueRuleStatus
Molar mass28.05 g/mol<= 500✓
XLogP31.20<= 5✓
Hydrogen bond donors0<= 5✓
Hydrogen bond acceptors0<= 10✓

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

3D pharmacophore features

ParameterValueUnit
H-bond acceptors (3D)0
H-bond donors (3D)0
Rings (3D)0
Hydrophobic centres (3D)2
Anionic centres (3D)0
Cationic centres (3D)0

Shape and volume

ParameterValueUnit
3D volume31.70ų
Rotatable bonds0
Heavy atoms2

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 6325

🛡️ Safety — CAS 74-85-1
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).

⚠️ Danger
GHS02 — Flammable
GHS02 Flammable
GHS04 — Gases under pressure
GHS04 Gases under pressure
GHS07 — Irritant / harmful
GHS07 Irritant / harmful

🚨 Hazard statements (H)

  • H220 — Extremely flammable gas
  • H336 — May cause drowsiness or dizziness

🛡 Precautionary statements (P)

  • P261 — Avoid breathing dust/fume/gas/mist/vapours/spray
  • P271 — Use only outdoors or in a well-ventilated area
  • P304+P340 — IF INHALED: Remove person to fresh air and keep comfortable for breathing
  • P312 — Call a POISON CENTER or doctor/physician if you feel unwell
  • 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

✓ Harmonised classification pursuant to Annex VI of the CLP Regulation (EC) 1272/2008 (official, binding classification). Index number: 601-010-00-3.

Reference (Chicago): European Chemicals Agency. "ethylene, Index No. 601-010-00-3." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress (harmonised list as of 2026-07-07). Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.

⚠ IARC — Group 3: not classifiable as to carcinogenicity to humans (evaluated by IARC). (Independent assessment of carcinogenicity evidence by IARC/WHO — supplements the CLP classification above.)
Reference (Chicago): IARC. n.d. IARC Monographs on the Identification of Carcinogenic Hazards to Humans: CAS 74-85-1. Lyon, France: International Agency for Research on Cancer, World Health Organization. https://monographs.iarc.who.int/list-of-classifications/.
Classification from the local MOL-GOD list (snapshot) — unverified against the current IARC list. Verify

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: 74-85-1 · 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 ↗

Pharmacological Status

Badania kliniczne Faza 3

Phase I
Phase II
Phase III
Approved

Phase III — large-scale multicenter comparative trials in a broad population.

ChEMBL CHEMBL117822 ↗

📅 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.

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

Check whether Ethylene 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
🏷️ Label generator (QR)
Ethylene• Ethene / Acetene• IUPAC: ethene• CAS: 74-85-1• EC: 200-815-3• Formula: C2H4• Mass: 28.05 g/molDANGERGHS HAZARD STATEMENTS:H220: Extremely flammable gasH336: May cause drowsiness or dizzinessP304+P340 P312 P501 P403+P233 P405 P261 P271FOR LABORATORY USE ONLY!Nonsensia Ltd124-128 City Road, EC1V 2NX Londonpure@molgod.orgmolgod.orgBatch No.: Net Mass:
Historical Incidents (CSB/EPA/Bretherick)

This database contains only serious industrial and laboratory incidents (CSB, EPA RMP, Bretherick). The absence of a record does NOT mean the substance is safe — the database is incomplete.

Historical Incidents (1)

  1. 1989-10-23 Pasadena, Texas, USA (Phillips 66 Houston Chemical Complex, HCC) Catastrophic explosion
    Substances: Ethylene (high-pressure HDPE feed) (CAS 74-85-1) + Oxygen / atmospheric air ingress (CAS 7782-44-7)
    23 fatalities 314 injured

    Podczas konserwacji reaktora HDPE settling leg (rurociag 22") doszlo do otwarcia zaworu DEMCO w trakcie procedury maintenance. Uwolnienie ~38 ton mieszaniny etylen/izobutan/wodor stworzylo chmure gazowo-powietrzna, ktora zaplonila po ~90 sekundach (zrodlo nieustalone definitywnie). VCE o sile 2.4 ton TNT, zniszczyl HDPE complex.

    Root cause: Single-block valve zamiast double-block-and-bleed. Procedury LO/TO niewlasciwe (compressed air zasilajacy aktuatory zaworow podlaczony do "open" zamiast "close" portow). Brak gas detection w okolicy reactora. Unauthorized work przy non-routine maintenance.
    Lessons learned: Double-block-and-bleed valve standard dla high-pressure reactor isolation. Kierunek pneumatic actuators musi byc fail-safe. OSHA PSM standard 29 CFR 1910.119 (1992) jest bezposrednim wynikiem tego incydentu.
    Primary source: OSHA + Phillips 66 + peer-reviewed Process Safety literature
    Bibliography (Chicago author-date)
    • U.S. Department of Labor, Occupational Safety and Health Administration. 1990. The Phillips 66 Company Houston Chemical Complex Explosion and Fire. Washington, DC: OSHA.
    • Atherton, John, and Frederic Gil. 2008. Incidents That Define Process Safety. Hoboken, NJ: Wiley-AIChE.
    • Khan, Faisal I., and S. A. Abbasi. 1999. "Major Accidents in Process Industries and an Analysis of Causes and Consequences." Journal of Loss Prevention in the Process Industries 12 (5): 361-378.
📚 Data sources on incidents
  1. U.S. Chemical Safety and Hazard Investigation Board (CSB). 2024. "CSB Incident Investigation Reports." Washington, DC: CSB. 🔗
  2. U.S. EPA / NOAA. 2024. "CAMEO Chemicals Database." Washington, DC: U.S. Environmental Protection Agency. 🔗
  3. BARPI (French Bureau for Analysis of Industrial Risks and Pollutions). 2024. "ARIA Database of Industrial Accident Reports." Saint-Denis: BARPI/DGPR. 🔗
  4. U.S. OSHA. 2024. "OSHA Accident Investigation Reports." Washington, DC: Occupational Safety and Health Administration. 🔗
  5. Urben, Peter G., ed. 2017. Bretherick's Handbook of Reactive Chemical Hazards. 8th ed. Oxford: Elsevier. ISBN 978-0-08-100971-2.
  6. Mannan, Sam, ed. 2005. Lees' Loss Prevention in the Process Industries. 3rd ed. Oxford: Elsevier. ISBN 978-0-7506-7555-0.
  7. Hollnagel, Erik. 2004. Barriers and Accident Prevention. Aldershot: Ashgate. ISBN 978-0-7546-2271-9.
  8. Kletz, Trevor A. 2003. "Lessons from Disasters — How Organizations Have No Memory and Accidents Recur." Process Safety and Environmental Protection 81 (4): 283–287. 🔗
📚 Scientific literature overview — CAS 74-85-1
⭐ Key findings (scientific literature) 8 publications
🏆 CAS 74-85-1 — multi-criteria ranking (W12): 30% citations · 20% recency · 20% topic · 15% historical · 15% open access.
  1. #1
    Zhang J, Liu Z, Farrar EJ et al. (2026) · Nature
    Why it matters: Recent (2026) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  2. #2
    Wang HQ, Zhao XY, Tang Z et al. (2025) · Nature communications
    Why it matters: Recent (2025) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  3. #3
    Ma X, Hasan MS, Anjam MS et al. (2025) · EMBO reports
    Why it matters: Recent (2025) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  4. #4
    Karim MM, Islam M, Miyabe MT et al. (2025) · Plant physiology
    Why it matters: Recent (2025) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  5. #5
    Das D, Varshney K, Ogawa S et al. (2025) · Nature communications
    Why it matters: Recent (2025) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  6. #6
    Nasiopoulou E, Michailidis M, Skodra C et al. (2025) · Plant physiology
    Why it matters: Recent (2025) · open access
    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
  7. #7
    Hao D, Xiao Z, Yan W et al. (2026) · Cell
    Why it matters: Recent (2026)
    SCORE 4.8 Mechanism DOI ↗ PubMed ↗
  8. #8
    Why it matters: Selected by multi-criteria score (citations + recency + topic + historical + OA).
    SCORE 2.25 Mechanism DOI ↗

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📄 Certificates of Analysis (CoA) CAS 74-85-1 none

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📚 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. World Intellectual Property Organization. 2024. "Patent Cooperation Treaty (PCT)." https://www.wipo.int/pct/.
  2. U.S. Patent and Trademark Office. 2024. "USPTO Patent Public Search." https://ppubs.uspto.gov/.
  3. European Patent Office. 2024. "Espacenet Patent Search." https://worldwide.espacenet.com/.
  4. 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.
  5. 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.
  6. 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.
  7. Meanwell, Nicholas A. 2011. "Synopsis of Some Recent Tactical Application of Bioisosteres in Drug Design." Journal of Medicinal Chemistry 54 (8): 2529-2591.
  8. 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.
  9. Hopkins, Andrew L., and Colin R. Groom. 2002. "The Druggable Genome." Nature Reviews Drug Discovery 1 (9): 727-730.
  10. Allison, John R., and Mark A. Lemley. 1998. "Empirical Evidence on the Validity of Litigated Patents." AIPLA Quarterly Journal 26 (3): 185-275.
  11. Patani, George A., and Edmond J. LaVoie. 1996. "Bioisosterism: A Rational Approach in Drug Design." Chemical Reviews 96 (8): 3147-3176.
  12. 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/74-85-1?status=active&limit=10

Data from PubChemSource: PubChem (NIH) · ChEMBL
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📚 REFERENCES (Aggregate bibliography, Chicago Author-Date) 79 items

All scientific sources cited in the accordions above for CAS 74-85-1. Format: Chicago Manual of Style 17th ed., Author-Date system.

🗄️ Scientific databases

  1. NIST. n.d. NIST Chemistry WebBook: CAS 74-85-1. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=74-85-1.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 74-85-1. 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 74-85-1. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=74-85-1.

📐 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.

📘 Monographs

  1. IARC. n.d. IARC Monographs on the Identification of Carcinogenic Hazards to Humans: CAS 74-85-1. Lyon, France: International Agency for Research on Cancer, World Health Organization. https://monographs.iarc.who.int/list-of-classifications/.

📄 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. ECHA — Annex VI to CLP (harmonised classification, ATP 23; 2026-07-07) https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.
  10. 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/.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. Kolthoff, Izaak Maurits, and Philip J. Elving, eds. 1978. Treatise on Analytical Chemistry, Part I: Theory and Practice. 2nd ed. New York: Wiley-Interscience.
  16. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2018. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning.
  17. Christian, Gary D., Purnendu K. Dasgupta, and Kevin A. Schug. 2014. Analytical Chemistry. 7th ed. Hoboken, NJ: Wiley.
  18. 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.
  19. 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.
  20. 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/.
  21. Grubbs, Frank E. 1950. "Sample Criteria for Testing Outlying Observations." Annals of Mathematical Statistics 21 (1): 27–58.
  22. Dixon, Wilfrid J. 1950. "Analysis of Extreme Values." Annals of Mathematical Statistics 21 (4): 488–506.
  23. Snedecor, George W., and William G. Cochran. 1989. Statistical Methods. 8th ed. Ames, IA: Iowa State University Press.
  24. Student [William Sealy Gosset]. 1908. "The Probable Error of a Mean." Biometrika 6 (1): 1–25.
  25. 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.
  26. 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.
  27. 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.
  28. International Air Transport Association. 2026. Dangerous Goods Regulations (DGR). 67th ed. Montreal: IATA. https://www.iata.org/en/programs/cargo/dgr/.
  29. 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.
  30. 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.
  31. 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.
  32. 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.
  33. 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
  34. 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
  35. 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
  36. Furr, A. Keith, ed.. 2000. "CRC Handbook of Laboratory Safety." CRC Press.
  37. Pohanish, Richard P.. 2017. "Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens." Elsevier.
  38. Lewis, Richard J.. 2012. "Sax's Dangerous Properties of Industrial Materials." Wiley.
  39. NIOSH. 2024. "Pocket Guide to Chemical Hazards." U.S. Department of Health and Human Services. https://www.cdc.gov/niosh/npg/.
  40. OSHA. 2024. "Occupational Chemical Database — Hazardous Waste Operations (HAZWOPER)." Occupational Safety and Health Administration. https://www.osha.gov/chemicaldata.
  41. 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.
  42. 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.
  43. 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.
  44. IPCS INCHEM. 2024. "International Programme on Chemical Safety — Waste Management Guidelines." WHO/UNEP/ILO. https://www.inchem.org/.
  45. 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.
  46. 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.
  47. 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.
  48. 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.
  49. 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.
  50. 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.
  51. 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.
  52. International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. https://database.ich.org/sites/default/files/Q10%20Guideline.pdf.
  53. 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.
  54. 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.
  55. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. https://www.uspnf.com/.
  56. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  57. 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.
  58. 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.
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📜 License & provenance
COMPUTED — PubChem3D · 3D conformer computed by PubChem using OMEGA; not an experimental structure.
Model
ethylene · 74-85-1
InChIKey
VGGSQFUCUMXWEO-UHFFFAOYSA-N
License
CC BY-SA 4.0 International
Attribution
MolGod Scientific — ethylene (CAS 74-85-1)
License & provenance record
ethylene (CAS 74-85-1) →
MolGod molecule record
ethylene →
Source data
PubChem CID 6325 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
d9d7f511504e1108ced1f6055b5f0d4ae61a618578c05986ed42594de713c31b
MD5 (STL)
9c7f6bf9f97ed6bca45c493213e71777
MolGod Identification Number
MG_239-282-733-11
Transformation
MolGod Scientific ball-and-stick mesh
Changes
Converted into a triangulated molecular mesh; atomic coordinates and connectivity unchanged.
Wikimedia Commons
STL · PNG
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.