C14H22O
206.32 g/mol
Flavor & FragranceWarning
Methyl-alpha-ionone
CAS127-42-4EC297-035-9
Category
Flavor & Fragrance
Compound Class
Other
Primary Use
Fragrance ingredient
Methyl-alpha-ionone is a synthetic organic compound that occurs naturally in brewer's yeasts. It is a colorless to pale-straw liquid used primarily as a fragrance ingredient.
fragrance ingredient
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
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Fragrance and cosmetic ingredient
ReferenceSame Category
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fragrance and flavoring intermediate
ReferenceSame Category
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Flavor and fragrance ingredient
Safety Reference
Warning
H411Toxic to aquatic life with long lasting effects
H315Causes skin irritation
H317May cause an allergic skin reaction
Customs Tariff Classification
The international HS code for Methyl-alpha-ionone (CAS 127-42-4) is 2914.23.
HS code (international, 6-digit)
2914.23
EU CN code (8-digit)
2914 23 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(E)-1-[(1R)-2,6,6-trimethylcyclohex-2-en-1-yl]pent-1-en-3-one
InChIKey
VPKMGDRERYMTJX-XEHSLEBBSA-N
SMILES
CCC(=O)/C=C/[C@H]1C(=CCCC1(C)C)C
Synonyms (13)
- .ALPHA-N-METHYLIONONE
- CETONE, ALPHA.-
- Methyl-alpha-ionone
- alpha-Methylionone
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