An extremely pungent, nauseating rotten-egg gas — sharply sulfurous with fecal, putrid undertones. Not a perfumery material in any practical sense; toxic at low concentrations and repulsive even in trace amounts.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 710.
Colorless gas.
Soluble in water, alcohol, glycerin and in some oils.
Very unpleasant, chokingly repulsive odor, often described as reminiscent of rotten eggs or decaying seaweed.
Although it might in some cases contribute to the peculiar topnote of an essential oil, it is common practice to remove Hydrogen sulfide prior to use of essential oils in perfumery.
Hydrogen sulfide is extremely poisonous and is not to be used in flavors.
Produced by reacting Sulfur with Hydrogen in vapor phase.