Food safety and quality: details

Flavouring	Butyric acid
Synonym(s)
Latest JECFA evaluation	1997 (Session 49)
Status of specification	Full
Information required
Chemical name	Butanoic acid
JECFA number	87
CAS number	107-92-6
FEMA number	2221
COE number	5
FLAVIS number
Molecular weight	88.11
Chemical formula	C4H8O2
Physical form/odour	colourless liquid/strong, rancid, butterlike odour
Solubility	miscible with alcohol, most fixed oils, propylene glycol, water
Solubility in ethanol
Boiling point (°C)	164°
Assay min %	99.0%
Acid value max
Refractive index	1.397-1.399
Specific gravity	0.952-0.956
Other requirements	Heavy Metals: <0.004%; Lead: <10 mg/kg; Reducing Subs.: passes test
ID Test	IR
Spectrum