72066-87-6 N-(2-((2-Bromo-4,6-dinitrophenyl)azo)-5-(ethylamino)-4-(2-methoxyethoxy)phenyl)propionamide Propanamide, N-(2-((2-bromo-4,6-dinitrophenyl)azo)-5-(ethylamino)-4-(2-methoxyethoxy)phenyl)-