Food safety and quality: details

Flavouring	3-Methylbutanethiol
Synonym(s)	Isoamyl mercaptan
Latest JECFA evaluation	2000 (Session 55)
Status of specification	Full
Information required
Chemical name	3-Methyl-1-butanethiol
JECFA number	513
CAS number	541-31-1
FEMA number	3858
COE number
FLAVIS number
Molecular weight	104.22
Chemical formula	C5H12S
Physical form/odour	colourless liquid with odour of onion or glue
Solubility	soluble in oil and alcohol
Solubility in ethanol
Boiling point (°C)	118-129.5°
Assay min %	97%
Acid value max
Refractive index	1.439-1.447
Specific gravity	0.831- 0.838
Other requirements
ID Test	IR, MS
Spectrum