Official EU label nameGlossary entry 13204

HYDROXYCAPRYLIC 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.

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Resolved identifiers

Resolved substance identity

CAS:617-73-2

EC:210-524-3

Ingredient index records:

HYDROXYCAPRYLIC ACID

Cosmetic functions: SKIN CONDITIONING

dl-2-Hydroxyoctanoic acid

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1 matched or reported name

HYDROXYCAPRYLIC ACID

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name HYDROXYCAPRYLIC 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 617-73-2

CAS 617-73-2PubChem CID 94180

Hydroxycaprylic Acid

2-hydroxyoctanoic acid is a hydroxy fatty acid that is caprylic (octanoic) acid substituted by a hydroxy group at position 2. It is functionally related to an octanoic acid. It is a conjugate acid of a 2-hydroxyoctanoate. — ChEBI

IUPAC name: 2-hydroxyoctanoic acid

Molecular formula: C8H16O3
Molecular weight: 160.21 g/mol
Exact mass: 160.109944368 Da
XLogP3: 2.0
Topological polar surface area: 57.5 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

2-Hydroxycaprylic acidOctanoic acid, 2-hydroxy-alpha-Hydroxycaprylic acidalpha-Hydroxyoctanoic acidDL-2-Hydroxyoctanoic acidDL-2-Hydroxycaprylic acid.alpha.-Hydroxycaprylic acid0R6X0G0S8A

16 more reported names

.alpha.-Hydroxy-n-caprylic acidEINECS 210-524-3NSC 189703NSC-189703alpha-Hydroxy-n-caprylic acidCHEBI:86543alpha-HCA acidRefChem:789453HYDROXYCAPRYLIC ACID [INCI](+-)-2-HYDROXYOCTANOIC ACID(+-)-ALPHA-HYDROXYCAPRYLIC ACID(+-)-.ALPHA.-HYDROXYCAPRYLIC ACID210-524-32-Hydroxy-n-octanoic Acid2-hydroxy caprylic acid2-hydroxy-octanoic acid

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External database identifiers

ChEBI:CHEBI:86543
ChEMBL:CHEMBL4447980
EPA DTXSID:DTXSID80862300
PubMed:22654812
PubMed:21820511
PubMed:21255122
PubMed:20496346
PubMed:19561068
PubMed:19493341
PubMed:19465768
PubMed:18215067
PubMed:16958050
PubMed:15260495
PubMed:14584912
PubMed:12053206

Retrieved from NIH PubChem on 2026-09-02 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 assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US 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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