Vitamin B12, also known as cobalamin, one of the B vitamins, is a kind of complex organic compound containing cobalt, and the trivalent cobalt chemical book is located in the center of the Gulin ring plane similar to porphyrin. It is the largest and most complex vitamin molecules found so far, and it is also the only vitamin containing metal ions. Cyanocobalamin is often used in medicines, supplements and food additives. It is intended for use in feed for all animal species and categories.
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