直接红 2RL;[Μ-[[7,7'-(羰基二亚氨基)双[4-羟基-3-[[2-羟基-5-磺苯基]偶氮]-2-萘磺酸盐]](8-)]]二铜酸四钠盐(4-);直接红 83
tetrasodium [mu-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-2-sulphonato]](8-)]]dicuprate(4-)
tetrasodium [mu-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-2-sulphonato]](8-)]]dicuprate(4-);Direct Red 220;Cuprate(4-), .mu.-7,7-(carbonyldiimino)bis4-(hydroxy-.kappa.O)-3-2-(hydroxy-.kappa.O)-5-sulfophenylazo-.kappa.N1-2-naphthalenesulfonato(8-)di-, tetrasodium;C.I.DIRECTRED83;cprate(4-), [ mu -[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulfop;Cuprate(4-), [μ-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-2-naphthalenesulfonato]](8-)]] di-, tetrasodium;Direct red 83 (C.I. 29225);Blend Rubzne D-RLL
