1,1'-Biphenyl, 3,4'-dinitro- (9CI) 3,4'-Dinitro-1,1'-biphenyl 3,4'-Dinitrobiphenyl 4-05-00-01827 (Beilstein Handbook Reference) 6311-43-9 BIPHENYL, 3,4'-DINITRO- BRN 1982974 NSC 43204