Tifolar150399-23-8100 % similar Pemetrexed137281-23-367 % similar 4-[2-(2-Amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-D]pyrimidin-5-yl)ethyl]benzoic acid137281-39-155 % similar Methyl 4-[2-(2-amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-D]pyrimidin-5-yl)ethyl]benzoate155405-80-452 % similar Calcium folinate1492-18-850 % similar Calcium levofolinate80433-71-250 % similar Sodium methotrexate7413-34-548 % similar Folic acid59-30-339 % similar Dihydrofolic acid4033-27-638 % similar Tetrahydrofolic acid135-16-036 % similar 5-Methyltetrahydrofolic acid134-35-035 % similar Levomefolic acid31690-09-235 % similar Leucovorin58-05-934 % similar Aminopterin54-62-633 % similar Methotrexate59-05-231 % similar Pralatrexate146464-95-131 % similar Pteroic acid119-24-430 % similar