1,2-Dichloro-4,5-dinitrobenzene 4,5-Dichloro-1,2-dinitrobenzene 4-05-00-00747 (Beilstein Handbook Reference) 6306-39-4 AI3-19504 BRN 2460868 Benzene, 1,2-dichloro-4,5-dinitro- NSC 22945 Parazol