英文别名C.I. Pigment Red 166; 1,4-Bis[[1-(2,5-dichlorophenylazo)-2-hydroxy-3-naphthoyl]amino]benzene; 2-Naphthalenecarboxamide,N,N-1,4-phenylenebis4-(2,5-dichlorophenyl)azo-3-hydroxy; 1,4-Bis[1-[(2,5-dichlorophenyl)azo]-2-hydroxynaphthalen-3-ylcarbonylamino]benzene; N,N'-1,4-phenylenebis[4-(2,5-dichlorophenyl)azo]-3-hydroxy-2-Naphthalenecarboxamide; Pigment Red 166; Pigment red 166 (C.I. 20730) 
