Food safety and quality: details

Flavouring	2-Pentyl-1-buten-3-one
Synonym(s)	3-Methylene-2-octanone
Latest JECFA evaluation	2002 (Session 59)
Status of specification	Full
Information required
Chemical name	3-Methyleneoctan-2-one
JECFA number	1149
CAS number	63759-55-7
FEMA number	3725
COE number
FLAVIS number
Molecular weight	140.22
Chemical formula	C9H16O
Physical form/odour	Pale yellow liquid; musty, mushroom odour
Solubility	insoluble in water; soluble in fats
Solubility in ethanol	Miscible at room temperature
Boiling point (°C)	81° (31 mm Hg)
Assay min %	96%
Acid value max
Refractive index	1.437-1.442
Specific gravity	0.808-0.814
Other requirements
ID Test	IR NMR
Spectrum