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Online Edition: "Specifications for Flavourings"

Flavouring Citral diethyl acetal
Synonym(s) Citrathal;3,7-Dimethyl-2,6-octadienal diethyl acetal
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 1,1-Diethoxy-3,7-dimethyl-2,6-octadiene
JECFA number 948
CAS number 7492-66-2
FEMA number 2304
COE number 38
FLAVIS number
Molecular weight 226.36
Chemical formula C14H26O2
Physical form/odour colourless liquid with a mild, green, citrusy, herbaceous odour
Solubility insoluble in water; soluble in organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 230°; 140-142° (15 mm Hg)
Assay min % 92% (sum of cis- and trans-isomers)
Acid value max 2
Refractive index 1.445-1.455
Specific gravity 0.864-0.879
Other requirements Minimum assay (sum of isomers + hemiacetals + citral): 98%
ID Test IR
Spectrum