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CAS 21834-92-4

CAS 21834-92-4 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 21834-92-4
CAS 21834-92-4PubChem CID 5370602

5-Methyl-2-phenyl-2-hexenal

(2E)-5-methyl-2-phenylhex-2-enal is a member of phenylacetaldehydes. — ChEBI

IUPAC name
(E)-5-methyl-2-phenylhex-2-enal
Molecular formula
C13H16O
Molecular weight
188.26 g/mol
Exact mass
188.120115130 Da
XLogP3
3.4
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

Cocalcocoa hexenal(2E)-5-methyl-2-phenylhex-2-enal2-Phenyl-5-methylhex-2-enalFEMA No. 3199alpha-(3-Methylbutylidene)benzeneacetaldehyde2-Hexenal, 5-methyl-2-phenyl-57UW55EC13
16 more reported names
Benzeneacetaldehyde, .alpha.-(3-methylbutylidene)-EINECS 244-602-35-Methyl-2-phenyl-2-hexenal (natural)Benzeneacetaldehyde, alpha-(3-methylbutylidene)-RefChem:5370345-METHYL 2-PHENYL 2-HEXENAL5-METHYL 2-PHENYL 2-HEXENAL [FCC]5-METHYL-2-PHENYL-2-HEXENAL [FHFI](E)-5-Methyl-2-phenyl-hex-2-enalFema No. 3199, E-UNII-935DI670UJ5-Methyl-2-phenyl-hex-2-enal, (2E)-935DI670UJ2-phenyl-5-methyl-2-hexenal(2E)-5-Methyl-2-phenyl-2-hexenalBenzeneacetaldehyde, alpha-(3-methylbutylidene)-, (E)-
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 21834-92-4

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How CAS 21834-92-4 is used on this site

CAS 21834-92-4 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 21834-92-4 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.