Official EU label nameGlossary entry 14008

ITACONIC 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:97-65-4

EC:202-599-6

Ingredient index records:

ITACONIC ACID

Cosmetic functions: ANTIMICROBIAL, BUFFERING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Butanedioic acid, 2-methylene-

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1 matched or reported name

ITACONIC ACID

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name ITACONIC 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 97-65-4

CAS 97-65-4PubChem CID 811

Itaconic acid

Itaconic acid is a dicarboxylic acid that is methacrylic acid in which one of the methyl hydrogens is substituted by a carboxylic acid group. It has a role as a fungal metabolite and a human metabolite. It is a dicarboxylic fatty acid, a dicarboxylic acid and an olefinic compound. It is functionally related to a succinic acid. It is a conjugate acid of an itaconate(2-). — ChEBI

IUPAC name: 2-methylidenebutanedioic acid

Molecular formula: C5H6O4
Molecular weight: 130.10 g/mol
Exact mass: 130.02660867 Da
XLogP3: -0.1
Topological polar surface area: 74.6 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

2-Methylenesuccinic acidMETHYLENESUCCINIC ACIDMethylenebutanedioic acidPropylenedicarboxylic aciditaconateButanedioic acid, methylene-2-Propene-1,2-dicarboxylic acidSuccinic acid, methylene-

16 more reported names

2-methylenebutanedioic acidNSC-3357CHEBI:30838methylidenebutanedioateRefChem:792464hydron;2-methylidenebutanedioate202-599-6Itaconicacidbutanedioic acid, 2-methylene-2-methylenebutanedioateAI3-16901NSC3357CAS-97-65-4HSDB 5308NSC 3357EINECS 202-599-6

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External database identifiers

ChEBI:CHEBI:30838
ChEMBL:CHEMBL359159
EPA DTXSID:DTXSID2026608
PubMed:36862550
PubMed:26358042
PubMed:24781056
PubMed:23000746
PubMed:22925689
PubMed:22885157
PubMed:22814491
PubMed:22759642
PubMed:22704478
PubMed:22658709
PubMed:22569416
PubMed:22493167

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 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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