2-Carboxy-4,6-dinitrochlorobenzene 2-Chloro-3,5-dinitrobenzoic acid 2497-91-8 4-09-00-01359 (Beilstein Handbook Reference) BENZOIC ACID, 2-CHLORO-3,5-DINITRO- BRN 2146480 EINECS 219-684-9 NSC 4538