Synonyms:
4,4'-(2,9-dimethyl-1,10-phenanthroline-4,7-diyl)bis(benzenesulfonic acid sodium) salt ; disodium 4,4'-(2,9-dimethyl-1,10-phenanthroline-4,7-diyl)bis(benzenesulphonate) ; 2,9-dimethyl-4,7-bis[4-(sodiosulfo)phenyl]-1,10-phenanthroline ; 4,7-bis[4-(sodiosulfo)phenyl]-2,9-dimethyl-1,10-phenanthroline ; 4,4'-(2,9-dimethyl-1,10-phenanthroline-4,7-diyl)bis(benzenesulfonic acid)disodium salt