19741-14-1 2,4-Apa 2,4-Diamino-N(10)-methylpteroic acid 4-(((2,4-Diamino-6-pteridinyl)methyl)methylamino)benzoic acid 4-Amino-4-deoxy-N-10-methylpteroic acid 4-Deoxy-4-amino-N(10)-methylpteroic acid Deoxyaminopteroic acid N-10-Methyl-4-deoxy-4-aminopteroate NSC 131463