Synonyms: Neodymate(5-),bis[4,5-dihydroxy-1,3-benzenedisulfonato(4-)-O4,O5]-, tetrasodium hydrogen;Neodymium, (dihydrogen 4,5-dihydroxy-m-benzenedisulfonato)[dihydrogen4,5-dihydroxy-m-benzenedisulfonato(2-)]-, tetrasodium salt (7CI,8CI);1,3-Benzenedisulfonic acid, 4,5-dihydroxy-, neodymium complex; Neodymium pyrocatecoldisulfonate; Phlogodym