at 0.10 % in propylene glycol. sulfurous cooked onion
Odor Type
sulfurous
JECFA Number
570
LogP
4.08
Safety Information
MSDS Information
FEMA 3227 Usage And Synthesis
Chemical Properties
Propenyl propyl disulfide has an odor and taste like that of cooked onions.
Occurrence
Flavor component of onion oil (trans-form); roasted onion, raw leek, Welsh onion, scallion and chives (Allium
schoenoprosum).
Preparation
Treatment of 1-ethylthio-2-propenylthioethene with NaNH2 in liquid ammonia results in formation of Na-1-propenethiolate;
which reacts with S-propyl propanethiosulfonate to give propenyl propyl disulfide in good yield.
