Food safety and quality: details

Flavouring	4-Acetyl-2-isopropenylpyridine
Synonym(s)	(2-(1-methyl ethenyl)-4-pyridinyl) ethanone
Latest JECFA evaluation	2012 (Session 76)
Status of specification	Tentative
Information required	Information to differentiate between JECFA Nos. 2153 and 2154
Chemical name	1-(2-Prop-1-en-2-ylpyridin-4-yl)ethanone
JECFA number	2154
CAS number	142896-12-6
FEMA number	4637
COE number
FLAVIS number
Molecular weight	161.2
Chemical formula	C10H11NO
Physical form/odour	Light yellow clear liquid; fermented herbal green aroma
Solubility	Practically insoluble to insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	277-279º
Assay min %	95%
Acid value max
Refractive index	1.517-1.519
Specific gravity	1.007-1.009
Other requirements
ID Test	MS HNMR
Spectrum