Phosphoric Acid

CAS 7664-38-2 · H₃O₄P · MW 97.995 g/mol

Full record: Phosphoric Acid — Safety Data Sheet →

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Phosphoric Acid (CAS 7664-38-2), H3O4P - 3D ball-and-stick molecular model, engraved element symbols (H O P), MolGod STL preview

MG_130-482-027-39 · engraved · 109,356 △ · 5 MB · SHA-256 046b1cfd58a5e585

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Phosphoric Acid (CAS 7664-38-2), H3O4P - 3D ball-and-stick molecular model, MolGod STL preview

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About Phosphoric Acid

Phosphoric Acid is a chemical compound registered under number CAS 7664-38-2, with the molecular formula H₃O₄P, and a molar mass of 97.995 g/mol.

The molecule contains 8 atoms connected by 7 chemical bonds. The full systematic IUPAC name of this compound is phosphoric acid. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, the partition coefficient logP = -2.1 (negative value, a hydrophilic compound), polar surface area PSA = 77.8 Å², 3 donors and 4 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The interactive 3D model and the viewer images are protected by copyright (© MolGod.org) — terms of use: molgod.org/copyright/.

Physicochemical properties

Molecular formula	H₃O₄P
Molar mass	97.995 g/mol
IUPAC	phosphoric acid
SMILES	`OP(=O)(O)O`
InChIKey	`NBIIXXVUZAFLBC-UHFFFAOYSA-N`
logP (XLogP3)	-2.1
PSA	77.8 Å²
HBD / HBA	3 / 4
PubChem CID	CID 1004 ↗

GHS safety

Signal word: Danger

GHS05

GHS05

H314 — Causes severe skin burns and eye damage

Scientific literature

Related literature

2 articles · 1 open access · Sources: PubMed, OpenAlex, Semantic Scholar

📈 Publication timeline (number of articles: 2)

Bar height = number of articles in a given year. Hover over a bar to see details.

Fluoride retention in human enamel after a single phosphoric acid and mixed phosphoric acid/SnF2 application in vitro

Kalter, P.G.E., Groeneveld, A., Flissebaalje, T.D. (1980)

$ Paywall

🔓

Phosphoric Acid Triester Micelles: Characterization and Self-Assembly.

Yokoyama Y, Makino K, Terada H et al. (2023) · Journal of oleo science

Open AccessDOI ↗PubMed ↗PDF ↗

Data from PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary generated by Semantic Scholar TLDR. Articles marked with require paid access.

Data sources

📊 PubChem CID 1004 — NIH
🔬 NIST WebBook — spectroscopy
💊 ChEMBL — bioactivity

Related molecules

Diammonium hydrogen phosphate CAS 7783-28-0 · H₉N₂O₄P Similar structure · Tanimoto 0.50 Ethylenediaminetetra(methylenephosphonic acid) CAS 1429-50-1 · C6H20N2O12P4 Similar structure · Tanimoto 0.31 Etidronate Disodium CAS 7414-83-7 · C₂H₆Na₂O₇P₂ Similar structure · Tanimoto 0.29 Trisodium phosphate dodecahydrate CAS 10101-89-0 · H₂₄Na₃O₁₆P Shared hazard H314 Tripotassium phosphate trihydrate CAS 22763-03-7 · H₆K₃O₇P Similar structure · Tanimoto 0.27 Monosodium etidronate CAS 29329-71-3 · C2H7NaO7P2 Similar structure · Tanimoto 0.26

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COMPUTED — PubChem3D · 3D conformer computed by PubChem using OMEGA; not an experimental structure.

Model: Phosphoric Acid · 7664-38-2
InChIKey: NBIIXXVUZAFLBC-UHFFFAOYSA-N
License: CC BY-SA 4.0 International
Attribution: MolGod Scientific — Phosphoric Acid (CAS 7664-38-2)
License & provenance record: Phosphoric Acid (CAS 7664-38-2) →
MolGod molecule record: Phosphoric Acid →
Source data: PubChem CID 1004 ↗
Model information: STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL): 6f5bd8a67dcace61dbe6cbca113a95917f58a30fe64e77a8581ff3f39a6bb580
MD5 (STL): abc70fd24075c33b0a6452c48c875f62
MolGod Identification Number: MG_130-482-027-39
Transformation: MolGod Scientific ball-and-stick mesh
Changes: Converted into a triangulated molecular mesh; atomic coordinates and connectivity unchanged.
Wikimedia Commons: not published yet

📄 Download 3D model: Phosphoric Acid, H₃O₄P, CAS 7664-38-2 · NORMAL · 163 KB 📄 Download 3D model: Phosphoric Acid, H₃O₄P, CAS 7664-38-2 · ENGRAVED (H, O, P) · 5 MB

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