2,3-Bis(bromomethyl)-6-fluoro-quinoxaline 1,4-dioxide 6-Fluoro-2,3-bis(bromomethyl)quinoxaline 1,4-di-N-oxide 84044-36-0 BRN 5055787 Quinoxaline, 2,3-bis(bromomethyl)-6-fluoro-, 1,4-dioxide