71455-71-5 Butanoic acid, 4-((3-((4-chlorobenzoyl)(2,6-dimethylphenyl)amino)-1-oxopropyl)(4-methoxyphenyl)amino)- N-(N-(p-Chlorobenzoyl)-3-(2,6-dimethylanilino)propionyl)-4-(p-anisidino)butyric acid