Food safety and quality: details

Flavouring	Methyl butyrate
Synonym(s)
Latest JECFA evaluation	1997 (Session 49)
Status of specification	Full
Information required
Chemical name	Methyl butanoate
JECFA number	149
CAS number	623-42-7
FEMA number	2693
COE number	263
FLAVIS number
Molecular weight	102.13
Chemical formula	C5H10O2
Physical form/odour	colourless liquid with an apple-like odour
Solubility	miscible with alcohol, ether; soluble 1 ml in 60 ml water
Solubility in ethanol
Boiling point (°C)	102-103°
Assay min %	98.0%
Acid value max	1
Refractive index	1.386-1.39
Specific gravity	0.892-0.897
Other requirements
ID Test	IR
Spectrum