25312-31-6 4-Amino pteroylaspartic acid 4-Aminopteroylaspartic acid Aminoanfol Aspartic acid, N-(p-(((2,4-diamino-6-pteridinyl)methyl)amino)benzoyl)-, L- (8CI) L-Aspartic acid, N-(4-(((2,4-diamino-6-pteridinyl)methyl)amino)benzoyl)- (9CI) NSC 98535