pyrazine
1Pyrazine — IUPAC name Pyrazine …
2Pyrazine — Pyrazine[1] Structure de la pyrazine Général …
3Pyrazine — 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… …
4Pyrazine — (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… …
5pyrazine — ● pyrazine nom féminin Composé C4H4N2, dont le squelette se retrouve dans de nombreux produits naturels. Nom générique des dérivés de ce composé …
6pyrazine — ▪ 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… …
7pyrazine — 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… …
8pyrazine — pirazinas statusas T sritis chemija apibrėžtis Šešianaris heterociklinis junginys. formulė C₄H₄N₂ atitikmenys: angl. pyrazine rus. пиразин ryšiai: sinonimas – 1,4 diazinas …
9pyrazine — noun A diazine in which the two nitrogen atoms are in the para positions; many of its derivatives are pharmaceuticals …
10pyrazine — pyr·azine …
