FAST BLACK K SALT; 2,5-dimethoxy-4-[(4-nitrophenyl)diazenyl]benzenediazonium; 4-AMINO-2,5-DIMETHOXY-4'-NITROAZOBENZENE DIAZOTATED ZINC DOUBLE SALT; 2,5-DIMETHOXY-4[(4-NITROPHENYL)AZO]BENZENE-DIAZONIUM CHLORIDE HEMI[ZINC CHLORIDE] SALT; 2,5-DIMETHOXY-4-(4-NITROPHENYLAZO)BENZENEDIAZONIUM CHLORIDE ZINC DOUBLE SALT; 4-Amino-2,5-dimethoxy-4'-nitroazobenzene; Fast Black K Salt hemi(zinc chloride); fast black K salt (C.I. 37190); 2,5-dimethoxy-4-[(4-nitrophenyl)azo]benzenediazonium tetrachlorozincate (2:1); dichlorozinc,[2,5-dimethoxy-4-[(4-nitrophenyl)diazenyl]phenyl]iminoazanium,chloride; Bis{2,5-dimethoxy-4-[(4-nitrophenyl)diazenyl]benzenediazonium} tetrachlorozincate(2-)
