Extremely pungent, sulfurous thiol with a sharp raw-onion and garlic character. At trace dilutions it lends a green, vegetal, savory nuance reminiscent of leek or cut chives; neat it is aggressively skunky and offensive.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1193.
Colorless liquid.
Slightly soluble in water, soluble in alcohol, propylene glycol and oils.
Very powerful, penetrating and diffusive, cabbage-like, sulfuraceous odor, unpleasant unless extremely diluted.
Concentrations below 1 ppm have a sweet onion-cabbage-like, not unpleasant taste.
It finds some use in flavor compositions, mainly in onion flavors, but also in various fruity types, where minute traces of this mercaptan can introduce quite natural effects.
1) from n-Propyl chloride and potassium hydrosulfide. 2) from n-Propanol plus bromine and red phosphorus in presence of sodium sulfate.