1,3-Benzenediamine, 4,4'-(1,3-phenylenebis(azo))bis-, dihydrochloride 1,3-Bis(2,3-diaminophenylazo)benzene hydrochloride 10114-58-6 80324-43-2 AI3-52758 Bismark Brown Y EINECS 233-314-3 m-Phenylenediamine, 4,4'-ltbbracm-phenylenebis(azo)rtbbracbis-,dihydrochloride