Iron, complexes with diazotized 3-amino-2-hydroxy-5-nitrobenzenesulfonic acid monosodium salt coupled with diazotized 2-amino-4-nitrophenol and resorcinol, sodium salts
Iron, complexes with diazotized 3-amino-2-hydroxy-5-nitrobenzenesulfonic acid monosodium salt coupled with diazotized 2-amino-4-nitrophenol and resorcinol, sodium salts