直接红12B; 直接桃红12B; 7,7'-iminobis[4-hydroxy-3-(phenylazo)-2-naphthalenesulfonic aci disodium sa; Benzo Rhoduline Red B; C.I. Direct red 31; C.I.Direct Red 31(29100); Chloramine Rose B,Pyrazol Pink 2B; Diphenyl Red RW; Direct pink; Nippon Fast Red 2B; Disodium 7,7'-iminobis{4-hydroxy-3-[(E)-phenyldiazenyl]-2-naphthalenesulfonate}; Disodium 7,7'-iminobis(4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate); 2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy-3-[(E)-2-phenyldiazenyl]-, sodium salt (1:2)
