Tetrahydrofolic acid135-16-0100 % similar 5-Methyltetrahydrofolic acid134-35-071 % similar Levomefolic acid31690-09-271 % similar Leucovorin58-05-970 % similar Dihydrofolic acid4033-27-668 % similar Folic acid59-30-366 % similar Pemetrexed137281-23-357 % similar Aminopterin54-62-656 % similar N-(4-Aminobenzoyl)-L-glutamic acid4271-30-147 % similar Calcium folinate1492-18-847 % similar Calcium levofolinate80433-71-247 % similar Methotrexate59-05-245 % similar N-(4-Nitrobenzoyl)-L-glutamic acid6758-40-344 % similar Pralatrexate146464-95-144 % similar Levomefolate glucosamine1181972-37-141 % similar Pteroic acid119-24-438 % similar Tetrahydrobiopterin17528-72-238 % similar Sapropterin62989-33-738 % similar Raltitrexed112887-68-036 % similar Tifolar150399-23-836 % similar