Cromophtal Scarlet R (CGY);N,N'-phenylene-1,4-bis[4-[(2,5-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide];2-Naphthalenecarboxamide, N,N-1,4-phenylenebis4-(2,5-dichlorophenyl)azo-3-hydroxy-;N,N'-1,4-phenylenebis[4-(2,5-dichlorophenyl)azo]-3-hydrox