| mustard oil | <chemistry> Mustard oil, a substance obtained from mustard, as a transparent, volatile and intensely pungent oil. The name is also extended to a number of analogous compounds produced either naturally or artificially. Term applied to any of the organic isothiocyanates in general, but more specifically to allyl isothiocyanate; such oils are metabolically convertible to thiocyanates and may thus lead to goiter. (05 Mar 2000) |
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| Mustard operation | Correction, at the atrial level, of haemodynamic abnormality due to transposition of the great arteries by an intraatrial baffle to direct pulmonary venous blood through the tricuspid orifice into the right ventricle and the systemic venous blood through the mitral valve into the left ventricle. Synonym: Mustard procedure. (05 Mar 2000) |
| Mustard procedure | Correction, at the atrial level, of haemodynamic abnormality due to transposition of the great arteries by an intraatrial baffle to direct pulmonary venous blood through the tricuspid orifice into the right ventricle and the systemic venous blood through the mitral valve into the left ventricle. Synonym: Mustard procedure. (05 Mar 2000) |
| Mustard, W | <person> Canadian thoracic surgeon, *1914. See: Mustard operation, Mustard procedure. (05 Mar 2000) |
| hemisulfur mustard | 2-(2-chloroethylthio)ethanol An antineoplastic agent. Synonym: mustard chlorohydrin, semisulfur mustard. (05 Mar 2000) |
| propylbenzilylcholine mustard | <chemical> An analog of benzilylcholine mustard. It is an alkylating nitrogen mustard analog that binds specifically and irreversibly to cholinergic muscarinic receptors and is used as an affinity label to isolate and study the receptors. Pharmacological action: affinity labels, muscarinic antagonists. Chemical name: Benzeneacetic acid, alpha-hydroxy-alpha-phenyl-, 2-((2-chloroethyl)propylamino)ethyl ester (12 Dec 1998) |
| semisulfur mustard | 2-(2-chloroethylthio)ethanol An antineoplastic agent. Synonym: mustard chlorohydrin, semisulfur mustard. (05 Mar 2000) |
| nitrogen mustard compounds | <chemical> A group of alkylating agents derived from mustard gas, with the sulfur replaced by nitrogen. They were formerly used as toxicants and vesicants, but now function as antineoplastic agent. These compounds are also powerful mutagens, teratogens, immunosuppressants, and carcinogens. Pharmacological action: antineoplastic agent, alkylating, carcinogens, mutagens, teratogens. (12 Dec 1998) |
| sulfur mustard | <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) |
| quinacrine mustard | <chemical> 2-methoxy-6-chloro-9-[4-bis(beta-chloroethyl)amino-1-methylbutylamino]acridine. Nitrogen mustard analog of quinacrine used primarily as a stain in the studies of chromosomes and chromatin. Fluoresces by reaction with nucleic acids in chromosomes. Pharmacological action: fluorescent dyes. Chemical name: 1,4-Pentanediamine, N1,N1-bis(2-chloroethyl)-N4-(6-chloro-2-methoxy-9-acridinyl)-, dihydrochloride (12 Dec 1998) |
| expressed mustard oil | The fixed oil expressed from the seeds of Brassica alba and B. Nigra; it contains the glycerides of oleic, arachidic, and other fatty acids; used as salad oil and in the manufacture of oleomargarine. (05 Mar 2000) |