Synonyms: tris(5-methyl-1,10-phenanthroline-n1,n19)-iron(2++sulfate(1:1);5-METHYL-1,10-PHENANTHROLINE FERROUS PERCHLORATE;5-METHYL-1,10-PHENANTHROLINE FERROUS SULFATE;tris(5-methyl-1,10-phenanthroline-N1,N10)iron(2+) sulphate;5-METHYL-1,10-PHENANTHROLINE FERROUS SULFATE, 0.025 M SOLUTION