quinoxaline

[ kwi-nok-suh-leen, -lin ]
/ kwɪˈnɒk səˌlin, -lɪn /

noun Chemistry.

a colorless, crystalline, water-soluble powder, C8H6N2, used chiefly in organic synthesis.
Also quin·ox·a·lin [kwi-nok-suh-lin] /kwɪˈnɒk sə lɪn/.

Origin of quinoxaline

1880–85; quin(ine) + (gly)oxal + -ine2