| methylene blue | <chemical> Methylthionine chloride; dark green crystals or crystalline powder having a bronze-like luster, readily reduced to colourless leukomethylene blue, which in turn is readily oxidised to methylene blue. Used as a bacteriologic stain and as an indicator, and administered orally or intravenously in the treatment of congenital methemoglobinaemia and cyanide poisoning. Pharmacological action: anti-infective agents, urinary, antidotes, dyes. Chemical name: Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride (12 Dec 1998) |
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| methylene chloride | <chemical> Dichloromethane. A chlorinated hydrocarbon that has been used as an inhalation anaesthetic and acts as a narcotic in high concentrations. Its primary use is as a solvent in manufacturing and food technology. Chemical name: Methane, dichloro- (12 Dec 1998) |
| methylene tetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase | <chemical> Bifunctional enzyme which contains mg-nad dependent covalently linked methylenetetrahydrofolate dehydrogenase (EC 1.5.1.15) and methenyltetrahydrofolate cyclohydrolase (EC 3.5.4.9); usually found in prokaryotes Synonym: methf dehydrogenase-cyclohydrolase (26 Jun 1999) |
| methylene white | The reduced and colourless form of methylene blue. Synonym: methylene white. (05 Mar 2000) |
| methylenebis(chloroaniline) | <chemical> 4,4'-methylene-bis(2-chloroaniline). Aromatic diamine used in the plastics industry as curing agent for epoxy resins and urethane rubbers. It causes bladder, liver, lung, and other neoplasms. Pharmacological action: carcinogens. Chemical name: Benzenamine, 4,4'-methylenebis(2-chloro- (12 Dec 1998) |
| methylenesuccinic acid | CH2==C(COOH)CH2COOH;the decarboxylation product of cis-aconitic acid. Synonym: methylenesuccinic acid. (05 Mar 2000) |
| methylenetetrahydrofolate dehydrogenase | <enzyme> Catalyses the oxidation of methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate. Includes EC 1.5.1.15 which uses NAD+. Chemical name: 5,10-Methylenetetrahydrofolate:NADP+ oxidoreductase Registry number: EC 1.5.1.5 (12 Dec 1998) |
| methylenetetrahydromethanopterin dehydrogenase | <enzyme> Dependent on coenzyme f420; forms methenyltetrahydromethanopterin Registry number: EC 1.5.99.- Synonym: me-h4mpt dehydrogenase, 5,10-methylenetetrahydromethanopterin reductase, n(5),n(10)-methylenetetrahydromethanopterin reductase, coenzyme f(420)-dependent methylene-5,6,7,8-tetrahydromethanopterin dehydrogenase, cof(420)-dependent methylenetetrahydromethanopterin dehydrogenase, mtd protein, h2-dependent methylene-h4mpt dehydrogenase, mth protein, cofactor f420-independent me-h4mpt dehydrogenase (26 Jun 1999) |
| methylenophil | Methylenophile Staining readily with methylene blue; denoting certain cells and histologic structures. Synonym: methylenophilic, methylenophilous. Origin: methylene + G. Philos, fond (05 Mar 2000) |
| methylenophilic | Methylenophile Staining readily with methylene blue; denoting certain cells and histologic structures. Synonym: methylenophilic, methylenophilous. Origin: methylene + G. Philos, fond (05 Mar 2000) |
| methylergometrine maleate | D-Lysergic acid-dl-hydroxybutylamide-2 maleate;a partially synthesised derivative of lysergic acid with oxytocic action, used to prevent or treat postpartum uterine atony and haemorrhage. Synonym: methylergometrine maleate. (05 Mar 2000) |
| methylergonovine | <chemical> A homolog of ergonovine containing one more ch2 group. (merck index, 11th ed) Pharmacological action: oxytocics. Chemical name: Ergoline-8-carboxamide, 9,10-didehydro-N-(1-(hydroxymethyl)propyl)-6-methyl-, (8beta(S))- (12 Dec 1998) |
| methylergonovine maleate | D-Lysergic acid-dl-hydroxybutylamide-2 maleate;a partially synthesised derivative of lysergic acid with oxytocic action, used to prevent or treat postpartum uterine atony and haemorrhage. Synonym: methylergometrine maleate. (05 Mar 2000) |
| methylformate synthase | <enzyme> Enzyme from methylotrophic yeasts catalyses formation of methylformate from formaldehyde and methanol in the presence of nad+; proposed mechanism is alcohol oxidation of an intermediate hemiacetal, ch2(oh)och3 Registry number: EC 1.1.1.- (26 Jun 1999) |
| methylglucamine | Cation commonly used in water-soluble iodinated radiographic contrast media. Synonym: N-methylglucamine. (05 Mar 2000) |