Leucovorin58-05-9100 % similar 5-Methyltetrahydrofolic acid134-35-079 % similar Levomefolic acid31690-09-279 % similar Tetrahydrofolic acid135-16-070 % similar Calcium folinate1492-18-869 % similar Calcium levofolinate80433-71-269 % similar Dihydrofolic acid4033-27-663 % similar Folic acid59-30-360 % similar Pemetrexed137281-23-353 % similar Aminopterin54-62-651 % similar Levomefolate glucosamine1181972-37-147 % similar Methotrexate59-05-244 % similar N-(4-Aminobenzoyl)-L-glutamic acid4271-30-143 % similar Pralatrexate146464-95-141 % similar N-(4-Nitrobenzoyl)-L-glutamic acid6758-40-341 % similar Raltitrexed112887-68-036 % similar Tifolar150399-23-834 % similar Pteroic acid119-24-434 % similar Carbamylglutamic acid1188-38-132 % similar