quinoxaline

noun
qui·​nox·​a·​line | \ kwi-ˈnäk-sə-ˌlēn How to pronounce quinoxaline (audio) , -ˌlīn How to pronounce quinoxaline (audio) \

Medical Definition of quinoxaline

: a weakly basic bicyclic compound C8H6N2 made by condensing the ortho form of phenylenediamine with glyoxal and having fused benzene and pyrazine rings also : any of various derivatives of quinoxaline having antibiotic properties

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