Food safety and quality: details

Flavouring	Isobutyraldehyde
Synonym(s)
Latest JECFA evaluation	2000 (Session 55)
Status of specification	Full
Information required
Chemical name	2-Methylpropanal
JECFA number	252
CAS number	78-84-2
FEMA number	2220
COE number	92
FLAVIS number
Molecular weight	72.11
Chemical formula	C4H8O
Physical form/odour	colourless, mobile liquid with a sharp, pungent odour
Solubility	miscible with alcohol, ether; soluble in water 1 ml in 125 ml
Solubility in ethanol
Boiling point (°C)	64°
Assay min %	98%
Acid value max	5
Refractive index	1.369-1.379
Specific gravity	0.783-0.788
Other requirements
ID Test	IR
Spectrum