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Online Edition: "Specifications for Flavourings"

Flavouring p-Menth-1,4(8)-dien-3-one
Synonym(s) Piperitenone;1-Methyl-4-isopropylidene-1-cyclohexen-3-one
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name 3-Methyl-6-(1-methylethylidene)cyclohex-2-en-1-one
JECFA number 757
CAS number 491-09-8
FEMA number 3560
COE number 11189
FLAVIS number
Molecular weight 150.22
Chemical formula C10H14O
Physical form/odour Yellow to amber oily liquid, powerful sharp, minty, phenolic odour
Solubility insoluble in water; soluble in oils
Solubility in ethanol miscible
Boiling point (°C) 233°
Assay min % 95% (total of isomers)
Acid value max
Refractive index 1.472-1.478
Specific gravity 0.976-0.983
Other requirements
ID Test MS