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Online Edition: "Specifications for Flavourings"

Flavouring Propyl isovalerate
Synonym(s) n-Propyl methylbutyrate
Latest JECFA evaluation 1997 (Session 49)
Status of specification Full
Chemical name Propyl 3-methylbutanoate
JECFA number 197
CAS number 557-00-6
FEMA number 2960
COE number 443
FLAVIS number
Molecular weight 144.21
Chemical formula C8H16O2
Physical form/odour colourless, mobile liquid/fruity odour
Solubility soluble in organic solvents, alcohol; insoluble in water
Solubility in ethanol
Boiling point (°C) 156-157°
Assay min % 99.0%
Acid value max 1
Refractive index 1.400 - 1.405
Specific gravity 0.860 - 0.866
Other requirements
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