... ; L-5-MTHF-Ca; Calcium levomefolate L-5-Methyltetrahydrofolate calcium CAS No. 151533-22-1 Product: L-5-Methyltetrahydrofolate Other name ... -Ca ; (6S)-N-[4-(2-Amino-1,4,5,6,7,8,-hexahydro-5-methyl-4-oxo-6-pteridinylmethylamino)benzoyl]-L ... levomefolateCAS NO: 151533-22-1Molecular Formula: C20H23CaN7O6Molecular Weight: 497.5179 CAS 151533-22-1