Food safety and quality
| share

Online Edition: "Specifications for Flavourings"

Flavouring Isobutyl alcohol
Synonym(s) Isobutanol
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name 2-Methylpropanol
JECFA number 251
CAS number 78-83-1
FEMA number 2179
COE number 49
FLAVIS number
Molecular weight 74.12
Chemical formula C4H10O
Physical form/odour colourless, mobile liquid with a penetrating, winey odour
Solubility miscible with alcohol, ether; soluble in water 1 ml in 140 ml
Solubility in ethanol
Boiling point (°C) 108°
Assay min % 98%
Acid value max 2
Refractive index 1.392-1.398
Specific gravity 0.799-0.801
Other requirements
ID Test IR