Sodium methotrexate7413-34-5100 % similar Methotrexate59-05-270 % similar Aminopterin54-62-651 % similar Tifolar150399-23-848 % similar Pralatrexate146464-95-147 % similar Calcium folinate1492-18-842 % similar Calcium levofolinate80433-71-242 % similar 2,4-Diamino-6-hydroxymethylpteridine945-24-437 % similar Folic acid59-30-336 % similar 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride73978-41-336 % similar 5-Methyltetrahydrofolic acid134-35-031 % similar Levomefolic acid31690-09-231 % similar