1,4-Benzenediamine, 2-nitro-, sulfate (1:1) 138875-97-5 2-NITRO-1,4-BENZENEDIAMINE SULFATE 2-Nitro-p-phenylenediamine, sulfate 2-Nitrobenzene-1,4-diammonium sulphate 5307-14-2 68239-83-8 EINECS 269-477-2 HSDB 6255