Pyrazine Pyr"a*zine, n. Also -zin -zin . [Pyridine + Gr. ? not + ? life.] (Org. Chem.) A feebly basic solid, {C4H4N2}, obtained by distilling piperazine with zinc dust, and in other ways. Also, by extension, any of various derivatives of the same. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • Pyrazine — IUPAC name Pyrazine …   Wikipedia

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  • Pyrazine — (Piazine, Aldine, Ketine) entstehen aus Amidoaldehyden und Amidoketonen durch Kondensation zweier Moleküle unter Austritt von Wasser und Wasserstoff. Dimethyl und Trimethylpyrazin sind aus Fuselöl isoliert worden, sie entstehen auch durch… …   Meyers Großes Konversations-Lexikon

  • pyrazine — ● pyrazine nom féminin Composé C4H4N2, dont le squelette se retrouve dans de nombreux produits naturels. Nom générique des dérivés de ce composé …   Encyclopédie Universelle

  • pyrazine — ▪ chemical compound       any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of nitrogen. The pyrazine ring is part of many polycyclic compounds of biological… …   Universalium

  • pyrazine — pyr·azine pir ə .zēn n 1) a crystalline heterocyclic weakly basic compound C4H4N2 2) any of various derivatives of pyrazine * * * py·ra·zine (pĭґrə zēn) an aromatic compound comprising a six membered ring with nitrogen atoms at… …   Medical dictionary

  • pyrazine — pirazinas statusas T sritis chemija apibrėžtis Šešianaris heterociklinis junginys. formulė C₄H₄N₂ atitikmenys: angl. pyrazine rus. пиразин ryšiai: sinonimas – 1,4 diazinas …   Chemijos terminų aiškinamasis žodynas

  • pyrazine — noun A diazine in which the two nitrogen atoms are in the para positions; many of its derivatives are pharmaceuticals …   Wiktionary

  • pyrazine — pyr·azine …   English syllables

  • pyrazine — ˈpirəˌzēn, zə̇n noun Etymology: International Scientific Vocabulary pyr + azine : a crystalline feeble heterocyclic base C4H4N2 obtained usually by distilling piperazine with zinc dust called also paradiazine …   Useful english dictionary

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