CAS 79-69-6PubChem CID 5371002
alpha-Irone
Alpha-irone is a methyl ketone that is alpha-ionone in which a hydrogen at position 5 of the cyclohex-2-en-1-yl ring is substituted by a methyl group. It is an enone and a methyl ketone. It is functionally related to an alpha-ionone. — ChEBI
- IUPAC name
- (E)-4-(2,5,6,6-tetramethylcyclohex-2-en-1-yl)but-3-en-2-one
- Molecular formula
- C14H22O
- Molecular weight
- 206.32 g/mol
- Exact mass
- 206.167065321 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
Methyl alpha-ionone6-Methyl-alpha-ionone4-(2,5,6,6-Tetramethylcyclohex-2-enyl)but-3-en-2-oneFEMA No. 25974-(2,5,6,6-Tetramethyl-2-cyclohexen-1-yl)-3-buten-2-oneCHEBI:10284(3E)-4-(2,5,6,6-tetramethylcyclohex-2-en-1-yl)but-3-en-2-oneO3M0L879K6
16 more reported names
RefChem:915528201-219-66-MethyliononeIrone4-(2,5,6,6-tetramethylcyclohex-2-en-1-yl)but-3-en-2-onealpha-Ironalpha-Ionone, methyl-6-Methyl iononeEINECS 201-219-6Ionone 6-Methyl, alpha2,6-cis-(2(1),2(2))-alpha-Ionone, cis-4-(2,5,6,6-Tetramethyl-2-cyclo-hexen-1-yl)-3-buten-2-one3-Buten-2-one, 4-(2,5,6,6-tetramethyl-2-cyclohexen-1-yl)-Irone, alpha-|A-ironeCyclocitrylidenebutanone, alpha-
External database identifiers
- ChEBI:CHEBI:10284
- ChEMBL:CHEMBL3183603
- EPA DTXSID:DTXSID4047042
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.