82144-26-1 Glutamic acid, N-(4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)-3-methoxybenzoyl)-, L- L-Glutamic acid, N-(4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)-3-methoxybenzoyl)- N-(4-(((2,4-Diamino-6-pteridinyl)methyl)methylamino)-3-methoxybenzoyl)-L-glutamic acid NSC 152737