2,3-Bis(chloroacetoxymethyl)quinoxaline 1,4-di-N-oxide 2,3-Quinoxalinediylbis(methylene)chloroacetate N,N'-dioxide 63751-59-7 Acetic acid, chloro-, 2,3-quinoxalinediylbis(methylene) ester, N,N'-dioxide BRN 0942344