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Official EU label nameGlossary entry 287

3-HYDROXYPROPIONIC ACID

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence
Markets checked
13
Markets with evidence
0
Evidence gaps
13
Resolved identifiers
2

Resolved substance identity

CAS:503-66-2
EC:207-974-8
Ingredient index records:
3-HYDROXYPROPIONIC ACID
Cosmetic functions: SKIN CONDITIONING - MISCELLANEOUS

3-Hydroxypropionic Acid is the organic acid that conforms to the formula:

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1 matched or reported name
3-HYDROXYPROPIONIC ACID

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name 3-HYDROXYPROPIONIC ACID.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 503-66-2
CAS 503-66-2PubChem CID 68152

3-Hydroxypropionic acid

3-hydroxypropionic acid is a 3-hydroxy monocarboxylic acid that is propionic acid in which one of the hydrogens attached to the terminal carbon is replaced by a hydroxy group. It has a role as an Escherichia coli metabolite and a human metabolite. It is an omega-hydroxy-short-chain fatty acid and a 3-hydroxy monocarboxylic acid. It is functionally related to a propionic acid. It is a conjugate acid of a 3-hydroxypropionate. — ChEBI

IUPAC name
3-hydroxypropanoic acid
Molecular formula
C3H6O3
Molecular weight
90.08 g/mol
Exact mass
90.031694049 Da
XLogP3
-1.0
Topological polar surface area
57.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

Hydracrylic acidbeta-Hydroxypropionic acidhydroxypropionic acidEthylene lactic acidbeta-Lactic acid3-HydroxypropanoateC4ZF6XLD2Xbeta-hydroxypropionate
16 more reported names
CHEBI:33404RefChem:94392207-974-8Propanoic acid, 3-hydroxy-3-HYDROXY-PROPANOIC ACIDEthylenelacticacidGlyceric acid, 2-deoxy-b-HydroxypropionatePropionic acid, 3-hydroxy-3-Hydroxypropionic Acid (contains varying amounts of 3,3-Oxydipropionic Acid)b-Hydroxypropionic acid3-Hydroxypropionic acid, 30% in water.beta.-Hydroxypropionic acid3-Hydroxypropanoic acid30% in waterEthylenelactic acidFamotidine Impurity 13
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortalUS EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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