Purchase Qty. Reference FOB Price
1-49 kg US$200.00
50-99 kg US$150.00
100+ kg US$100.00
Product Description
Vitamin B12, also known as cobalamin, is a polycyclic compound containing cobalt trivalent, four reduced pyrrole rings are linked together into a Coo ring (similar to porphyrin), is the only vitamin containing metal elements. Vitamin B12 is a red crystalline powder, odorless and tasteless, soluble ...