18921-69-2 18921-70-5 L-Aspartic acid, N-(4-(((2,4-diamino-5-methyl-6-quinazolinyl)methyl)amino)benzoyl)-, disodium salt N-(4-(((2,4-Diamino-5-methyl-6-quinazolinyl)methyl)amino)benzoyl)-L-aspartic acid disodium salt