β-Nicotinamide adenine dinucleotide phosphate, also known as oxidized coenzyme II, an important coenzyme, is nicotinamide adenine dinucleotide (NAD ⁺). Ribose ring system linked to adenine in 2'-Phosphorylation derivatives of position. Oxidized coenzyme II. Through redox reaction, protons, electrons and energy are transferred, and they participate in many metabolic reactions of cells. The synthesis of lipids, fatty acids and nucleotides can activate the multienzyme system, promote the synthesis and metabolism of nucleic acids, protein and polysaccharides, improve material transport and regulation control, and improve metabolic function.