英文别名6-Pteridinecarboxylic acid, 2,4-diamino-; Methotrexate Impurity 24（Pralatrexate Impurity 3）; 2,4-diamino-pteridine-6-carboxylic acid; 2,4-Diamino-pteridin-carbonsaeure-(6); 2,4-Diamino-pteridincarbonsaeure-(6); 2,4-Diamino-pteridin-6-carbonsaeure; 2,4-Diaminopteridin-6-carbonsaeure; 2,4-Diamino-6-carboxy-pteridin 
