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CAS 24720-09-0

CAS 24720-09-0 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 24720-09-0
CAS 24720-09-0PubChem CID 5366077

(E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one

1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-enone is an enone with a trimethylcyclohexenyl substituent at C-1. It has a role as a fragrance and an allergen. — ChEBI

IUPAC name
(E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one
Molecular formula
C13H20O
Molecular weight
192.30 g/mol
Exact mass
192.151415257 Da
XLogP3
3.2
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one(+/-)-alpha-DAMASCONE1-(2,6,6-TRIMETHYL-CYCLOHEX-2-ENYL)-BUT-2-EN-1-ONE(2E)-1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one(2E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one2-Buten-1-one, 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (E)-trans-.alpha.-Damascone1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one
16 more reported names
(E)-.alpha.-Damascone(e)-alpha-damasconeMDD00FOW8JCHEBI:53220trans-2-Buten-1-one, 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-enonetrans-2,6,6-trimethyl-1-crotonoyl-2-cyclohexene1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-trans-2-Buten-1-one2-Buten-1-one, 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (2E)-alpha-Damascone, (E)-UNII-MDD00FOW8JUNII-UP5JTZ982I1-[2,6,6-Trimethyl-2-cyclohexen-1-yl]-2-buten-1-onealpha-damasconDamascone alphaDamascone, alpha-
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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 24720-09-0

1 total
No records found for this CAS number.

How CAS 24720-09-0 is used on this site

CAS 24720-09-0 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares 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 24720-09-0 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.