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Online Edition: "Specifications for Flavourings"

Flavouring 2,6-Nonadienal diethyl acetal
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 1,1-Diethoxy-2,6-nonadiene
JECFA number 946
CAS number 67674-36-6
FEMA number 3378
COE number 660
FLAVIS number
Molecular weight 212.33
Chemical formula C13H24O2
Physical form/odour colourless oily liquid with a fresh, green, cucumber odour
Solubility insoluble in water; soluble in organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 125° (4 mm Hg)
Assay min % 90% (sum of isomers)
Acid value max 1
Refractive index 1.441-1.448
Specific gravity 0.860-0.868
Other requirements Minimum assay (named cpd. + isomers + 2-nonenal diethyl acetal): 98%
ID Test IR