A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed)

Synonyms: YY9FVM7NSN, 13845-23-3, Hydrogen Sulfide (H2S2), Hydrogen Sulfide (H2S3), 13465-07-1, Hydrogen sulfide (H2S), Hydrogen Sulfide, Hydrogen Sulfide (H2(Sx)), 50864-71-6, Sulfide, Hydrogen