pteridines monocarboxylic acid amide dicarboxylic acid Methotrexate methotrexate 4-amino-10-methylfolic acid 4-amino-N(10)-methylpteroylglutamic acid 6851 A pteridine that has formula C20H22N8O5. Beilstein:70669 C20H22N8O5 CHEBI:44183 CHEBI:44185 CHEBI:6837 CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O ChemIDplus:59-05-2 DrugBank:DB00563 Emtexate InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 InChIKey=FBOZXECLQNJBKD-ZDUSSCGKSA-N KEGG COMPOUND:59-05-2 KEGG COMPOUND:C01937 KEGG DRUG:D00142 Ledertrexate METHOTREXATE MTX Methotrexate N-(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)amino}benzoyl)-L-glutamic acid N-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)amino}phenyl)carbonyl]-L-glutamic acid N-[4-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]-L-glutamic acid NIST Chemistry WebBook:59-05-2 PDBeChem:MTX Patent:US2512572 Rheumatrex Trexall Wikipedia:Methotrexate methotrexate methotrexatum metotrexato