Name Alpha-Isomethyl-ionone: Description Alpha-Isomethyl-ionone is a sesquiterpenoid used as a fragrance compound. It is naturally occurring or synthetically-derived. It is commonly derived from brewer's yeast. Made synthetically by condensation of citral with methyl ethyl ketone controlling the ratio between the n- and iso-forms; the methyl pseudo ionone obtained is then subjected to ring closure, using strong alkali and high temperature (thus favoring the formation of iso-forms); See also monographs of α-, β-, and γ-ionones. Benefits Imparts a floral scent. Considerations • Skin & Eye Irritation
May cause skin or eye irritation or allergies at higher concentrations.
• Environmental Concerns
Harmful to aquatic life with long-lasting effects. Synonyms Alpha-isomethylionone
Cetone alpha
alpha-iso-Methylionone
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
Isomethyl-alpha-ionone
3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one
Isonaline 70
3-BUTEN-2-ONE, 3-METHYL-4-(2,6,6-TRIMETHYL-2-CYCLOHEXEN-1-YL)-
alpha-isomethyl ionone
Isomethylionone, alpha-
.alpha.-Cetone
(E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one
.alpha. Isomethyl ionone
Isomethyl-.alpha.-ionone
(3E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one
.alpha.-Ionone, isomethyl-
4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-methyl-3-buten-2-one
a-iso-Methylionone
Methyl-alpha-isoionone
4-(2,6,6-Trimethyl 2-cyclohexen-1-yl)-3-methyl-3-buten-2-one
alpha-Ionone, isomethyl-
(E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-enyl)but-3-en-2-one
Methyl-.alpha.-isoionone
Iso-.alpha.-methyl ionone
Methyl ionone I
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one, analytical standard
Isomethyl-a-ionone
3-Methyl-a-ionone
8-Methyl-.alpha.-ionone
.alpha.-iso-Methyl ionone
ALPHAISOMETHYL IONONE
METHYL .GAMMA.-IONONE
ISOMETHYLIONONE (ALPHA-)
Alpha-iso-methylionone, tech grade
.ALPHA.-ISOMETHYLIONONE [FHFI]
(+/-)-ISOMETHYL-.ALPHA.-IONONE
alpha-Cetone, odorant used in allergy studies
alpha-Isomethyl ionone, >=95%, stabilized, FG
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one #
(3E)-3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one Research Sources https://pubchem.ncbi.nlm.nih.gov/compound/5372174 Summary Risks seem to be more when product is at high concentration. Diluted to low amounts in a cosmetic item it's likely safe.
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