2,7-Naphthalenedisulfonic acid, 4,4'-((3-sulfo(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(3-amino-, pentasodium salt (9CI) 2,7-Naphthalenedisulfonic acid, 4,4'-((3-sulfo-4,4'-biphenylylene)bis(azo))bis(3-amino-, pentasodium salt (8CI) 4,4'-(3-Sulfo-4,4'-biphenylylenbiazo)bis(3-amino-2,7-naphthalindisulfonsaeure) pentanatriumsalz 574-64-1 Biphenyl-3-sulfonsaeure-4,4'-bis(1-azo-2-amino-3,6-naphthyldisulfonsaeure) pentanatriumsalz C.I. 22850 EINECS 209-372-0 NSC 11243 Pentasodium 4,4'-((3-sulphonato(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(3-aminonaphthalene-2,7-disulphonate) Trypan red Trypanrot