71889-11-7 N-(2-((2-Bromo-4,6-dinitrophenyl)azo)-5-(diethylamino)-4-(2-methoxyethoxy)phenyl)propionamide Propanamide, N-(2-((2-bromo-4,6-dinitrophenyl)azo)-5-(diethylamino)-4-(2-methoxyethoxy)phenyl)-