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CAS 26643-91-4

CAS 26643-91-4 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 26643-91-4
CAS 26643-91-4PubChem CID 5363896

4-Methyl-2-phenyl-2-pentenal

(2Z)-4-Methyl-2-phenyl-2-pentenal is a member of phenylacetaldehydes. — ChEBI

IUPAC name
(Z)-4-methyl-2-phenylpent-2-enal
Molecular formula
C12H14O
Molecular weight
174.24 g/mol
Exact mass
174.104465066 Da
XLogP3
2.9
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

FEMA No. 32002-Pentenal, 4-methyl-2-phenyl-ZJ4E916A4U(2Z)-4-methyl-2-phenylpent-2-enalBenzeneacetaldehyde, alpha-(2-methylpropylidene)-RefChem:5251502-PHENYL-4-METHYLPENT-2-ENAL247-869-4
16 more reported names
4-Methyl-2-phenyl-2-penteralalpha-IsobutylidenebenzeneacetaldehydeUNII-ZJ4E916A4Ualpha-(2-Methylpropylidene)benzeneacetaldehydeEINECS 247-869-4(2Z)-4-Methyl-2-phenyl-2-pentenal4-Methyl-2-phenyl-2-penteral (natural)(E)-4-Methyl-2-phenyl-2-pentenal (Stabilized with a-tocopherol)Benzeneacetaldehyde, .alpha.-(2-methylpropylidene)-FEMA 32004ME89LKG9FCHEBI:177615ULRYRAHIBWLZKC-XYOKQWHBSA-NFEMA NO. 3200, Z-(Z)-4-methyl-2-phenyl-pent-2-enal(2Z)-4-Methyl-2-phenyl-2-pentenal #
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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 26643-91-4

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How CAS 26643-91-4 is used on this site

CAS 26643-91-4 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 26643-91-4 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.