Synonyms: 6-Amino-1-phenol-2,4-disulfonic acid;1-Phenol-2,4-disulfonicacid, 6-amino- (6CI);m-Benzenedisulfonic acid, 5-amino-4-hydroxy- (7CI,8CI);2-Aminophenol-4,6-disulfonic acid;5-Amino-4-hydroxy-m-benzenedisulfonic acid;1,3-Benzenedisulfonicacid, 5-amino-4-hydroxy-;