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Online Edition: "Specifications for Flavourings"

Flavouring (+/-) (E,Z)-5-(2,2-Dimethylcyclopropyl)-3-methyl-2-pentenal
Synonym(s) Acitral
Latest JECFA evaluation 2008 (Session 69)
Status of specification Full
Chemical name (+/-)(E,Z)-5-(2,2-Dimethylcyclopropyl)-3-methyl-2-pentenal
JECFA number 1817
CAS number 877-60-1
FEMA number 4105
COE number
FLAVIS number
Molecular weight 166.27
Chemical formula C11H18O
Physical form/odour Colourless to slightly yellow liquid; Fruity aroma
Solubility Insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 234-237°
Assay min % 90% (E-isomer 45-48% E and Z-isomer 43-45%)
Acid value max
Refractive index 1.495-1.501
Specific gravity 0.874-0.878
Other requirements SC: Citral (<10%)
ID Test HNMR
Spectrum