A quinoxaline, also called a benzopyrazine, in organic chemistry, is a heterocyclic compound containing a ring complex made up of a benzene ring and a pyrazine ring. It is isomeric with other naphthyridines including quinazoline, phthalazine and cinnoline. Quinoxalines are used as dyes, pharmaceuticals and antibiotics such as echinomycin, levomyci...
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http://en.wikipedia.org/wiki/Quinoxaline
• (n.) Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones.
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http://thinkexist.com/dictionary/meaning/quinoxaline/
Quin·ox'a·line noun [
Quin oline + gly
oxal .]
(Chemistry) Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones. [ Written also
chinoxaline .]
Found on
http://www.encyclo.co.uk/webster/Q/11
a colorless, crystalline, water-soluble powder, CHN, used chiefly in organic synthesis.
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https://www.infoplease.com/dictionary/quinoxaline
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