Synonyms: C.I.Direct Red 83 (7CI,8CI);Cuprate(4-), [m-[[7,7'-(carbonyldiimino)bis[4-(hydroxy-kO)-3-[[2-(hydroxy-kO)-5-sulfophenyl]azo-kN1]-2-naphthalenesulfonato]](8-)]]di-,tetrasodium (9CI);Cuprate(4-), [m-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-2-naphthalenesulfonato]](8-)]]di-,tetrasodium;2-Naphthalenesulfonic acid,7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-, coppercomplex;C.I. Direct Red 220;Chloramine Light Violet 2R;Chlorantine Light Violet 2RLL;Dialuminous Rubine B;Direct Fast Ruby MU;Direct Lightfast Ruby MU;Direct Violet 2RLL;Direct rubine L2A;Fabrifast Rubine 3BLL;Fast Red BLL;Helion Violet 2RLL;Sirius SupraRubine SB;Solantine Rubine LB;Solar Rubinol 3LR;