Pyrazine

Pyr'a·zine noun Also -zin [ Pyr idine + Greek ... not + ... life.] (Org. Chem.) A feebly basic solid, C 4 H 4 N 2 , obtained by distilling piperazine with zinc dust, and in other ways. Also, by extension, any of various derivatives of the same.
Found on http://www.encyclo.co.uk/webster/P/203

Pyrazine

• Alt. of -zin
Found on http://thinkexist.com/dictionary/meaning/pyrazine/

pyrazine

any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of ...
Found on http://www.britannica.com/eb/a-z/p/137

Pyrazine

Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. Pyrazine is a symmetrical molecule with point group D2h. Derivatives such as phenazine are well known for their antitumor, antibiotic and diuretic activities. Pyrazine is less basic in nature than pyridine, pyridazine and pyrimidine. Tetramethylpyrazine (also kn...
Found on http://en.wikipedia.org/wiki/Pyrazine

Pyrazine

See below Methoxypyrazine .
Found on http://www.wein-plus.eu/en/Pyrazines_3.0.10562.html
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