Alpha-Isomethyl Ionone

AKA “3-Methyl-4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one, (3E)-3-methyl-4-(2, 6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one, RefChem:1068240, 204-846-3, Alpha-isomethylionone, 127-51-5, Cetone alpha, alpha-iso-Methylionone, Isomethyl-alpha-ionone, Isonaline 70”

Skin Conditioning

Ingredient Facts

Alpha-isomethyl ionone

AKA: 3-Methyl-4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one, (3E)-3-methyl-4-(2, 6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one, RefChem:1068240, 204-846-3, Alpha-isomethylionone, 127-51-5, Cetone alpha, Alpha-iso-Methylionone, Isomethyl-alpha-ionone, Isonaline 70

Skin Conditioning · Perfuming · EWG: 3

Synthetic

Fragrance

Skin Conditioner

Not Clean

3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone

Formula

C14H22O

Mol. Weight

206.32

CAS #

127-51-5

Form

Oil

State

Dry Powder, Liquid, Other Solid; Liquid

See origin →

Functions

Perfuming

Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.

Skin Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Traditional Use

A synthetic fragrance compound developed in the 20th century as part of the modern perfumery industry's expansion. Designed to mimic woody and floral notes, it has no traditional or historical use but became standard in cosmetic fragrances from the 1960s onward.