Levomefolate Calcium Synonyms: L-5-MTHF-Ca; L-5-Methyltetrahydrofolate Calcium Cas No.: 151533-22-1 Molecular Formula: C20H27CaN7O6 Molecular Weight: 497.52 Appearance: White to light yellowish crystalline powder Calcium: 7.0% - 8.5% D-5-Methylfoate: Not more than 1.0% Purity: ...