英语词汇“carbamide”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

carbamide

释义

carbamide Chem.|ˈkɑːbəmaɪd|
[f. carb- + amide.]
Analytical name of the organic compound urea, CO·2(NH₂), as a primary diamide of Carbonyl. Hence sulpho-carbamide or sulphur urea, in which CS takes the place of CO.
Also carˈbamic [see amic] a., related to carbamide, as in carbamic acid, CO·NH₂·OH, carbamic ethers. ˈcarbamate, a salt of carbamic acid, as ammonium carbamate, CO·NH₂· O·NH₄.
1865Mansfield Salts 367 The compound ‘Carbamide’ is not yet known in the separate state.1877Watts Fownes' Chem. II. 391 Carbamide or Urea..was the first instance of the artificial formation of a product of the living organism.1869Roscoe Elem. Chem. xxxv. 382 Carbamic Acid.

Add: Hence also ˈcarbamyl n. |-maɪl, -mɪl|, the monovalent radical NH₂CO{b1} , derived from carbamic acid; usu. attrib.
[1906Tingle & Robinson in Amer. Chem. Jrnl. XXXVI. 230 The compound was designated..as ‘semicarbazine camphoformeneaminecarboxylic acid’... The term ‘carbamyl’ designates satisfactorily the carbamide residue, {b1}NHCONH₂ , which is present.]1907Chem. Abstr. I. 2107 Carbamyl chloride does not react readily with phenols.1954S. Duke-Elder Parsons' Dis. Eye (ed. 12) v. 70 Two drugs are sometimes employed which combine the direct and indirect methods of stimulation [of the eye muscles]—doryl (carbachol) (carbamyl-choline chloride) (1.0 per cent.) and urecholine.1970R. W. McGilvery Biochem. xx. 487 Uracil and thymine are metabolized by the same routes... The two products are carbamyl derivatives of the corresponding β-amino acids... The carbamyl group is removed by hydrolysis, releasing the free amino acids and ammonia and CO₂.

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