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CAS 3724-65-0

CAS 3724-65-0 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 3724-65-0
CAS 3724-65-0PubChem CID 637090

Crotonic Acid

Crotonic acid appears as a white crystalline solid. Shipped as either a solid or liquid. Soluble in water and less dense than water. Corrosive to metals and tissue. — CAMEO Chemicals

IUPAC name
(E)-but-2-enoic acid
Molecular formula
C4H6O2
Molecular weight
86.09 g/mol
Exact mass
86.036779430 Da
XLogP3
0.7
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

trans-2-Butenoic acid3-Methylacrylic acid(2E)-but-2-enoic acidbeta-Methylacrylic acidalpha-Butenoic acidalpha-Crotonic acidSolid crotonic acidbeta-Methacrylic acid
16 more reported names
Kyselina krotonovaAcrylic acid, 3-methyl-2E-butenoic acidYW5WZZ4O5QNSC-8751FEMA NO. 3908CHEBI:41131NSC-206946RefChem:919215223-077-4107-93-7trans-Crotonic acid(E)-2-Butenoic acid(E)-Crotonic acidBUTENOIC ACID2-butenoic acid, (2E)-
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.

Records for CAS 3724-65-0

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How CAS 3724-65-0 is used on this site

CAS 3724-65-0 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 3724-65-0 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.