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py·ra·zine (pĭґrə-zēn) an aromatic compound comprising a six-membered ring with nitrogen atoms at positions 1 and 4; it is a component of the folates and of the isoalloxazine ring system of flavins.Medical dictionary. 2011.
Pyrazine — IUPAC name Pyrazine … Wikipedia
Pyrazine — Pyrazine[1] Structure de la pyrazine Général … Wikipédia en Français
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… … The Collaborative International Dictionary of English
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 — 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
