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PROPENYL GUAETHOL Basic information
PROPENYL GUAETHOL Chemical Properties
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-37/39
  • WGK Germany 2
  • RTECS SL3850000
  • Chemical PropertiesFree-flowing, white powder; odor and taste similar to vanilla, but much more powerful.Very soluble in fats, edible solvents, and essential oils; very slightly soluble in water.
  • Chemical PropertiesPROPENYL GUAETHOL exists in (Z)- (mp 35–36°C), [876306-58-0], and in (E)- (mp 86°C), [63477-41-8] forms. The (E)-isomer has a sweet vanilla-like odor. Propenylguethol can be prepared from isosafrole by reaction with methylmagnesium chloride or by ethylation of isoeugenol followed by selective demethylation with alkali .
  • Chemical PropertiesPropenylguaethol has a vanilla-like odor and flavor.
  • UsesArtificial vanilla flavoring, flavor enhancer.
  • PreparationBy alkaline hydrolysis of 1-ethoxy-2-methoxy-4-propenyl benzene in ethanol or methanol solution at 150 to 190°C under pressure; or in ethylene glycol solution at the same temperature under atmospheric pressure; by saponification and contemporary transposition of the double bond starting from 1-ethoxy-2-methoxy-4-allyl benzene.
  • Aroma threshold valuesDetection: 400 ppb. Aroma characteristics at 1.0%: vanilla, sweet, spicy, slightly phenolic with a heliotropine- like creaminess.
  • Taste threshold valuesTaste characteristics at 25 ppm: vanilla, spicy, sweet nutty, anisic with a biting creaminess.
  • Synthesis Reference(s)Synthetic Communications, 21, p. 379, 1991 DOI: 10.1080/00397919108016759
PROPENYL GUAETHOL Preparation Products And Raw materials
PROPENYL GUAETHOL(94-86-0)Related Product Information
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