Food safety and quality: details

Flavouring	cis- and trans-Mercapto-p-menthan-3-one
Synonym(s)
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Information required
Chemical name	1-Mercapto-p-menthane-3-one
JECFA number	1673
CAS number	29725-66-4
FEMA number	4300
COE number
FLAVIS number	12.259
Molecular weight	186.32
Chemical formula	C10H18OS
Physical form/odour	Colourless to pale yellow liquid; Citrus aroma
Solubility	Insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	119-123° (10 mm Hg)
Assay min %	89%
Acid value max
Refractive index	1.487-1.497
Specific gravity	0.989-0.999
Other requirements	Also contains 8-9% piperitone and 1-2% alpha-terpineol
ID Test	HNMR
Spectrum