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.

Example:
anybody knows how can I find the electron density map of Quinoxaline nucleus?

Taxonomy
Quinoxaline, free encyclopedia, benzopyrazine, C1, antitumoral, derivatives, IBX, Quinoxalines, search, Benzo, Benzodiazine, Chinoxalin, Identifiers, C2C, N2, g/mol, dyes, diketones.

Defination from the web:
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. ... Retrieved from "http://en.wikipedia.org/wiki/Quinoxaline" ...