quinoxaline

[kwi-nok-suh-leen, -lin]
Also quin·ox·a·lin [kwi-nok-suh-lin] /kwɪˈnɒk sə lɪn/.

Origin of quinoxaline

1880–85; quin(ine) + (gly)oxal + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018