Synonyms: 2,2'-Stilbenedisulfonicacid, 4,4'-diamino- (6CI,7CI,8CI);2,2'-Disulfo-4,4'-stilbenediamine;4,4'-Diaminostilben-2,2'-disulfonic acid;Amsonic acid;DASD;DSDacid;Diaminostilbenedisulfonic acid;Flavonic acid;NSC 163;p,p'-Diaminodiphenylethylene-o,o'-disulfonic acid;p,p'-Diaminostilbene-o,o'-disulfonic acid;