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Online Edition: "Specifications for Flavourings"

Flavouring 2,6-Dimethyl-5-heptenal
Synonym(s) Melonal
Latest JECFA evaluation 2003 (Session 61)
Status of specification Full
Chemical name 2,6-Dimethylhept-5-en-1-al
JECFA number 349
CAS number 106-72-9
FEMA number 2389
COE number 2006
FLAVIS number 05.074
Molecular weight 140.23
Chemical formula C9H16O
Physical form/odour pale yellow liquid with a melon-like odour
Solubility soluble in ethanol; insoluble in glycerol and water
Solubility in ethanol 1 ml in 1 ml 95% alcohol; 1 ml in 2 ml 70% alcohol
Boiling point (°C) 116-124° (100 mm Hg)
Assay min % 85%
Acid value max 5
Refractive index 1.442-1.448
Specific gravity 0.845-0.854
Other requirements SC: 6-methyl-5-hepten-2-one, 2,6 dimethyl-6-heptenal
ID Test IR