4-((4-(((2,4-Diamino-6-pteridinyl)methyl)methylamino)benzoyl)amino)butanoic acid 4-(p-(((2,4-Diamino-6-pteridinyl)methyl)methylamino)benzamido)butyric acid 68352-96-5 Butanoic acid, 4-((4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)amino)- Butyric acid, 4-(p-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzamido)-