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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 2.0
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 http://www.fao.org/ag/agn/jecfa-flav/img/img/948.gif



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