title: Facile new synthesis and purification of 5,10-methenyl-tetrahydrofolate from folic acid.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D005492:Folic Acid; D008722:Methods; D013763:Tetrahydrofolates / Q000138:chemical synthesis*
chemical_list: D013763:Tetrahydrofolates; C018092:5,10-methenyltetrahydrofolate; D005492:Folic Acid