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CAS 32540-03-7

CAS 32540-03-7 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 32540-03-7

CAS 32540-03-7PubChem CID 6504440

(4E)-4-(4-Methyl-3-cyclohexen-1-ylidene)pentanal

IUPAC name: (4E)-4-(4-methylcyclohex-3-en-1-ylidene)pentanal

Molecular formula: C12H18O
Molecular weight: 178.27 g/mol
Exact mass: 178.135765193 Da
XLogP3: 2.2
Topological polar surface area: 17.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

Pentanal, 4-(4-methyl-3-cyclohexen-1-ylidene)-, (4E)-RefChem:10504774-(4-Methyl-3-cyclohexen-1-ylidene)pentanalPentanal, 4-(4-methyl-3-cyclohexen-1-ylidene)-DIXPNXMCGXWBQL-QXMHVHEDSA-N

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External database identifiers

EPA DTXSID:DTXSID00886063

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 32540-03-7

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How CAS 32540-03-7 is used on this site

CAS 32540-03-7 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 32540-03-7 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.