Magnafolate® is a patent trademark of C-crystal form of calcium salt L-5-Methyltetrahydrofolate (CAS No. 151533-22-1) by Jinkang Pharma, produced under US Patent No. 9,150,982 along with a better particle size distribution, excellent stability, better dissolution, high potency, bioavailability and safety, which has been well approved in US GRAS, NDI and FDA.