Synonyms: Iron, complexes with diazotized 2-amino-4,6-dinitrophenol coupled with diazotized 4-amino-5-hydroxy-1,3-naphthalenedisulfonic acid, diazotized 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized 4-amino-3-methylbenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, sodium salts;sodium; 2-amino-4,6-dinitro-phenol; 4-amino-5-hydroxy-naphthalene-1,3-disulfonic acid; 4-amino-5-hydroxy-naphthalene-2,7-disulfonic acid; 4-amino-3-methyl-benzenesulfonic acid; 3-hydroxyphenolate; iron; 4-nitroaniline