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CAS 1335-46-2

CAS 1335-46-2 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 1335-46-2
CAS 1335-46-2PubChem CID 5371084

Methylionone

1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1-penten-3-one is a sesquiterpenoid. — ChEBI

IUPAC name
(E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one
Molecular formula
C14H22O
Molecular weight
206.32 g/mol
Exact mass
206.167065321 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

Ionone, methyl-FEMA No. 2711RefChem:555432215-635-0alpha-methyl iononeMethyl iononealpha-Cetone1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one
16 more reported names
1322-70-9Methyl-alpha-ionone1-PENTEN-3-ONE, 1-(2,6,6-TRIMETHYL-2-CYCLOHEXEN-1-YL)-5-(2,6,6-Trimethyl-2-cyclohexenyl)-4-penten-3-onealpha-Methylionone127-42-41-(2,6,6-Trimethyl-2-cyclohexene-1-yl)-1-penten-3-one(1E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-oneCetone, alpha-Methylionone, alpha-(e)-1-(2,6,6-trimethylcyclohex-2-enyl)pent-1-en-3-one(1E)-1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1-penten-3-one1-Penten-3-one, 1-((1R)-2,6,6-trimethyl-2-cyclohexen-1-yl)-, (1E)-EINECS 204-842-1EINECS 215-635-0EINECS 231-926-5
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 1335-46-2

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How CAS 1335-46-2 is used on this site

CAS 1335-46-2 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 1335-46-2 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.