172701-49-4 1H-Pyrazole-3-carboxylic acid, 1-(3-chlorophenyl)-5-((4-(dimethylamino)phenyl)azo)-4-methoxy-,ethyl ester Ethyl 1-(3-chlorophenyl)-5-((4-(dimethylamino)phenyl)azo)-4-methoxy-1H-pyrazole-3-carboxylate