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Online Edition: "Specifications for Flavourings"

Flavouring (E,Z)-Geranic acid
Latest JECFA evaluation 2008 (Session 69)
Status of specification Full
Chemical name 3,7-Dimethyl-2,6-octadienoic acid
JECFA number 1825
CAS number 459-80-3
FEMA number 4121
COE number 10094
FLAVIS number 08.081
Molecular weight 168.24
Chemical formula C10H16O2
Physical form/odour Colourless viscous liquid; Faint floral aroma
Solubility Practically insoluble to insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 149-151° (18 mm Hg)
Assay min % 95% (E-isomer 49.4% and Z-isomer 45.6%)
Acid value max
Refractive index 1.473-1.479
Specific gravity 0.953-0.959
Other requirements m.p.= 21°
ID Test MS