Food safety and quality: details

Flavouring	4-Mercapto-2-pentanone
Synonym(s)	4-Mercaptopentan-2-one
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Information required
Chemical name	4-Mercapto-2-pentanone
JECFA number	1670
CAS number	92585-08-5
FEMA number	4157
COE number
FLAVIS number
Molecular weight	118.2
Chemical formula	C5H10OS
Physical form/odour	Clear, colourless liquid; Strong, pungent, meaty aroma
Solubility	Soluble in ether and chloroform; insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	258-260°
Assay min %	95%
Acid value max
Refractive index	NA
Specific gravity	NA
Other requirements	Product is a 1% solution of 4-mercapto-2-pentanone, purity 95% min, in acetoin
ID Test	HNMR IR MS
Spectrum