Official EU label nameGlossary entry 351

4-PENTENOIC 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

No exact name match was found in the imported regulatory indexes and no CAS or EC identity was resolved. This is common for mixtures, botanicals and composite label names. Verify the supplier specification before treating similarly named records as the same substance.

Official name structure and source evidence

This section separates facts supplied by external records from structure derived only from the exact official label wording.

NIH PubChem

Matched2026-08-31

Pent-4-enoic acid is a pentenoic acid having the double bond at position 4. It is a conjugate acid of a pent-4-enoate.

PubChem title: 4-Pentenoic acid
IUPAC name: pent-4-enoic acid
Molecular formula: C5H8O2
Molecular weight: 100.12 g/mol
InChIKey: HVAMZGADVCBITI-UHFFFAOYSA-N

Verified source synonyms

4-PENTENOIC ACIDPent-4-enoic acid591-80-0Allylacetic acidAllyl acetic acidFEMA No. 2843DTXSID0044448D4S77Y29FBCHEBI:35936NSC-9000NSC-20944DTXCID8024448RefChem:526248209-732-73-Vinylpropionic acid4 PAMFCD00004408Allylessigsaeure4-Pentensaeure4-pentenic acid4-penten-1-oic acidDelta(4)-pentenoic acid.DELTA.4-Pentenoic acidC5:1n-1

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Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name 4-PENTENOIC 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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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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