barbituric acid

a white, crystalline, slightly water-soluble powder, C4H4N2O3, used chiefly in the synthesis of barbiturates. Also called malonylurea.
[1865-70]

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      an organic compound of the pyrimidine family, a class of compounds with a characteristic six-membered ring structure composed of four carbon atoms and two nitrogen atoms, that is regarded as the parent compound of the barbiturate drugs. It is used in the production of riboflavin, a nutritional factor (see 2 (riboflavin)).

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Universalium. 2010.

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  • Barbituric acid — IUPAC name …   Wikipedia

  • barbituric acid — [bär΄bə tyoor′ik, bär΄bətoor′ik] n. [< Ger barbitursäure (< ModL Usnea barbata, lit., bearded moss + ursäure, a ureide of acid character < urea, urea + säure, acid) + IC] a white, odorless, crystalline acid, C4H4O3N2, used in the… …   English World dictionary

  • Barbituric acid — Bar bi*tu ric ac id (Chem.) A white, crystalline substance, {CH2(CO.NH)2.CO}, derived from alloxantin, also from malonic acid and urea, and regarded as a substituted urea. [1913 Webster] …   The Collaborative International Dictionary of English

  • barbituric acid — bar′bitu′ric ac′id [[t]ˈbɑr bɪˈtʊər ɪk, ˈtyʊər , ˌbɑr [/t]] n. chem. pha a white, crystalline, slightly water soluble powder, C4H4N2O3, used chiefly in the synthesis of barbiturates • Etymology: 1865–70; < F barbiturique < G Barbitur(sӓure) …   From formal English to slang

  • barbituric acid — barbitūro rūgštis statusas T sritis chemija atitikmenys: angl. barbituric acid rus. барбитуровая кислота ryšiai: sinonimas – 2,4,6(1H,3H,5H) pirimidintrionas …   Chemijos terminų aiškinamasis žodynas

  • barbituric acid — A crystalline dibasic acid from which barbital and other barbiturates are derived; has no sedative action. SYN: malonylurea. * * * bar·bi·tu·ric acid .bär bə .t(y)u̇r ik n a synthetic crystalline acid C4H4N2O3 that is a derivative of pyrimidine …   Medical dictionary

  • barbituric acid — noun Etymology: part translation of German Barbitursäure, irregular from the name Barbara + International Scientific Vocabulary uric + German Säure acid Date: 1866 a synthetic crystalline acid C4H4N2O3 derived from pyrimidine …   New Collegiate Dictionary

  • barbituric acid — n. Chem. an organic acid from which various sedatives and sleep inducing drugs are derived. Etymology: F barbiturique f. G Barbitursaumlure (Saumlure acid) f. the name Barbara …   Useful english dictionary

  • barbituric acid — synthetic crystalline acid, substance from which several sedative drugs are derived …   English contemporary dictionary

  • barbituric acid — [ˌbα:bɪ tjʊərɪk, tʃʊərɪk] noun Chemistry a synthetic organic compound from which the barbiturates are derived. Origin C19: from Fr. barbiturique, from Ger. Barbitursäure, from the given name Barbara + Säure acid …   English new terms dictionary

  • barbituric acid — /babəˌtjʊərɪk ˈæsəd/ (say bahbuh.tyoouhrik asuhd) noun a heterocyclic compound, C4H4N2O3.2H2O, from which several hypnotic and sedative drugs are derived; malonyl urea. {German Barbitursäure, perhaps from the name Barbara + ur(ic) + Säure acid} …   Australian English dictionary

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