Vitamin B12Vitamin B12 (cobalamin) is a group of water soluble cobalt containing molecules with roles in brain and nervous system functioning and blood formation through regulation of DNA synthesis, cellular metabolism, fatty acid metabolism, and amino acid metabolism. Purity: >98% Applications: Suitable for cell culture CAS Number: 68 19 9 Empirical Formula: C63H88CoN14O14P Molecular Weight: 1355. 37 Unless otherwise indicated, the products listed herein are