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CAS 97-65-4

CAS 97-65-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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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 Ų
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

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

Records for CAS 97-65-4

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How CAS 97-65-4 is used on this site

CAS 97-65-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 97-65-4 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.