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Online Edition: "Specifications for Flavourings"

Flavouring beta-Isomethylionone
Synonym(s) 3-Buten-2-one, 3-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl);3-Methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one
Latest JECFA evaluation 2014 (Session 79)
Status of specification Full
Chemical name (3E)-3-Methyl-4-(2,6,6-trimethylcyclohex-1-en-1-yl)but-3-en-2-one
JECFA number 2186
CAS number 79-89-0
FEMA number 4151
COE number 650
FLAVIS number 07.041
Molecular weight 206.32
Chemical formula C14H22O
Physical form/odour Colourless solid, Warm floral aroma
Solubility Practically insoluble to insoluble
Solubility in ethanol Soluble
Boiling point (°C) NA
Assay min % 95%
Acid value max
Refractive index NA
Specific gravity NA
Other requirements m.p. = 62°