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CAS 81925-81-7

CAS 81925-81-7 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 81925-81-7
CAS 81925-81-7PubChem CID 5362588

5-Methyl-2-hepten-4-one

(E)-5-methyl-2-hepten-4-one has been reported in Corylus avellana with data available. — LOTUS - the natural products occurrence database

IUPAC name
(E)-5-methylhept-2-en-4-one
Molecular formula
C8H14O
Molecular weight
126.20 g/mol
Exact mass
126.104465066 Da
XLogP3
2.2
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

5-methylhept-2-en-4-oneFEMA No. 37612-Hepten-4-one, 5-methyl-, (E)-8K2S58736FRefChem:103119617-270-62-Hepten-4-one, 5-methyl-(+/-)-Filbertone
16 more reported names
(E)-5-Methyl-2-hepten-4-one5-Methyl-(E)-2-hepten-4-one(2E)-5-Methyl-2-hepten-4-one5-Methyl-2-hepten-4-one [FHFI](+/-)-5-Methyl-2-hepten-4-one5-Methyl-2-hepten-4-one, (+/-)-2-Hepten-4-one, 5-methyl-, (2E)-UNII-8K2S58736F5-Methyl-2-hepten-4-one, predominantly trans(2E)-5-methylhept-2-en-4-oneFilbertone, (.+/-.)-CS-W013495HY-W012779AC-33764AS-761355-Methyl-2-hepten-4-one, predominantly trans, 98%, FG
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 81925-81-7

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How CAS 81925-81-7 is used on this site

CAS 81925-81-7 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 81925-81-7 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.