VESUVINE; Basic Brown 1; BASIC BROWN; VESUVIN; Bismarck Brown; BASIC BROWN G; VESUVINE G; VesuvineBA; LEATHER BROWN; 4,4'-(1,3-Phenylenebis(diazene-2,1-diyl))bis(benzene-1,3-diamine) dihydrochloride; Bismarck Brown B; 4,4'-(m-Phenylenebisazo)bis-m-phenylenediamine dihydrochloride; 1,3-Bis(2,3-diaminophenylazo)benzene hydrochloride; 4,4'-[1,3-PHENYLENEBIS(AZO)]-BIS[1,3-BENZENEDIAMINE] DIHYDROCHLORIDE; BASIC BROWN NO 1; BASIC BROWN GX; BASIC BROWN GXP