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单词 mercapturic
释义

mercapturicadj.

Brit. /ˌməːkapˈtjʊərɪk/, /ˌməːkapˈtjɔːrɪk/, U.S. /ˌmərˌkæpˈt(j)ʊrɪk/
Origin: A borrowing from German, combined with an English element. Etymons: German Bromphenylmercaptursäure , -ic suffix.
Etymology: < German -mercaptur- (in Bromphenylmercaptursäure bromophenylmercapturic acid (B. Baumann & C. Preusse 1879, in Berichte der Deutsch. Chem. Ges. 12 806) < mercapt- (in Mercaptan mercaptan n.) + ur- (in Urin urine n.1)) + -ic suffix.
Chemistry.
mercapturic acid n. any of various organic acids of the formula RSCH2CH(NH·CO·CH3)COOH (where R is an aryl or alkyl radical), some of which are excreted in the urine as detoxication products of aromatic compounds.
ΘΚΠ
the world > matter > chemistry > organic chemistry > acids obtained from animals > [noun] > in urine > miscellaneous others
hippuric acid1831
alkapton1860
hydurilic acid1865
toluric acid1868
kynurenic acid1872
mercapturic acid1879
phenylpyruvic acid1887
EDTA1950
1879 Jrnl. Chem. Soc. 36 803 An examination of the urine of a dog, to which 3 to 4 grams of bromobenzene had been daily administered for six months, showed... The urine contains bromophenyl-mercapturic acid.
1884 Jrnl. Chem. Soc. 46 1395 A body strongly lævorotatory, which on treatment with acids yields mercapturic acid.
1934 Times Lit. Suppl. 9 Aug. 555/2 Naphthalene is detoxicated in the rabbit partly by conjugation with cysteine and subsequent excretion as the mercapturic acid.
1971 H. G. Mandel in B. N. La Du et al. Fund. Drug Metabolism x. 168 Acetylation takes place in the liver..and the resulting mercapturic acid is then excreted in the urine.
1992 Chem. Res. Toxicol. 5 36/2 Derivatized haloacetic acids and mercapturic acids.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).
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adj.1879
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