| sulfide oxidase | <enzyme> Catalyses the conversion of hydrogen sulfide to sulfur; isolated from hyphomicrobium neptunium Registry number: EC 1.8.- (26 Jun 1999) |
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| 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) |
| 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) |