FEMA 3227

Propenyl propyl disulfide has an odor and taste like that of cooked onions.

Flavor component of onion oil (trans-form); roasted onion, raw leek, Welsh onion, scallion and chives (Allium schoenoprosum).

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.