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Online Edition: "Specifications for Flavourings"

Flavouring 3-Methylbutyraldehyde
Synonym(s) Isovaleraldehyde
Latest JECFA evaluation 1998 (Session 51)
Status of specification Full
Chemical name 3-Methylbutanal
JECFA number 258
CAS number 590-86-3
FEMA number 2692
COE number 94
FLAVIS number
Molecular weight 86.13
Chemical formula C5H10O
Physical form/odour colourless to yellow liquid with a fruity, fatty, animal, almond odour
Solubility soluble in water
Solubility in ethanol
Boiling point (°C) 92-93°
Assay min % 95.0%
Acid value max 15
Refractive index 1.387-1.408
Specific gravity 0.795-0.815 (20°/20°)
Other requirements Melting Pt.: - 51°C
ID Test IR