| sulfide | A compound of sulfur in which the sulfur has a valence of -2; e.g., Na2S, HgS; also, a thioether (i.e., R-S-R', such as lanthionine). Synonym: sulfuret. (05 Mar 2000) |
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| sulfide dehydrogenase | <enzyme> From bacteria Registry number: EC 1.8.2.- Synonym: flavocytochrome c, soxb protein, soxb gene product (26 Jun 1999) |
| sulfide oxidase | <enzyme> Catalyses the conversion of hydrogen sulfide to sulfur; isolated from hyphomicrobium neptunium Registry number: EC 1.8.- (26 Jun 1999) |
| sulfide quinone reductase | <enzyme> Part of the photosynthetic electron transport chain in chlorobium; reaction occurs in the dark, in the absence of oxygen Registry number: EC 1.8.5.- Synonym: plastoquinone reductase, sulfide-quinone oxidoreductase, sqr enzyme, sulfide-quinone reductase (26 Jun 1999) |
| sulfides | Chemical groups containing the covalent sulfur bonds -s-. The sulfur atom can be bound to inorganic or organic moieties. (12 Dec 1998) |
| allyl sulfide | diallyl sulfide; thioallyl ether; oil garlic; a constituent of garlic oil used in the manufacture of flavours. (05 Mar 2000) |
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| barium sulfide | A poisonous grayish yellow powder, used as a depilatory. (05 Mar 2000) |
| crude calcium sulfide | Used externally in the treatment of acne, scabies, and ringworm. Synonym: sulfurated lime. (05 Mar 2000) |
| selenium sulfide | A mixture of crystalline selenium monosulfide and solid solutions of selenium and sulfur in an amorphous form, containing 52 to 55.5% Se; used in the treatment of seborrhoea of the scalp or dandruff; it is applied to the scalp as a suspension. (05 Mar 2000) |
| hydrogen sulfide | <chemical> Hydrogen sulfide (h2s). A flammable, poisonous gas with a characteristic odour of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. Chemical name: Hydrogen sulfide (H2S) (12 Dec 1998) |
| di(2-chloroethyl)sulfide | <chemical> 1,1'-thiobis(2-chloroethane). Severe irritant and vesicant of skin, eyes, and lungs. It may cause blindness and lethal lung oedema and was formerly used as a war gas. The substance has been proposed as a cytostatic and for treatment of psoriasis. It has been listed as a known carcinogen in the fourth annual report on carcinogens (ntp-85-002, 1985) (merck, 11th ed). Pharmacological action: carcinogens, chemical warfare agents, dermatologic agents. Chemical name: Ethane, 1,1'-thiobis(2-chloro- (12 Dec 1998) |
| lead sulfide | The native form in which lead is chiefly found. Synonym: galena. (05 Mar 2000) |