| cyanide-nitroprusside test | A qualitative test for diagnosis of cystinuria; the addition of fresh sodium cyanide formed by sodium nitroprusside to a sample of urine gives rise to a stable red-purple colour in the presence of cystine. (05 Mar 2000) |
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| cyanide poisoning | A fairly common disease of herbivorous animals, but uncommon in man. Cyanogenic compounds are very toxic to humans either by inhalation or ingestion. (27 Sep 1997) |
| hydrogen cyanide | <chemical> Hydrogen cyanide (hcn). A toxic liquid or colourless gas. It is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials. Pharmacological action: poisons. Chemical name: Hydrocyanic acid (12 Dec 1998) |
| sodium cyanide | <chemical> Sodium cyanide (na(cn)). A highly poisonous compound that is an inhibitor of many metabolic processes and is used as a test reagent for the function of chemoreceptors. It is also used in many industrial processes. Pharmacological action: enzyme inhibitors, indicators and reagents, poisons. Chemical name: Sodium cyanide (Na(CN)) (12 Dec 1998) |
| thiosulfate cyanide transsulfurase | <enzyme> An enzyme that catalyses the transfer of the planetary sulfur atom of thiosulfate ion to cyanide ion to form thiocyanate ion. Chemical name: Thiosulfate:cyanide sulfurtransferase Registry number: EC 2.8.1.1 (12 Dec 1998) |