
ß-Nicotinamide Adenine Dinucleotide Disodium Salt (Reduced) (ß-NADH.Na2, DPNH.Na2) by Molecular Depot is a β-nicotinamide adenine dinucleotide disodium salt in the reduced form, written β-NADH.Na2 or DPNH.Na2, of 98 per cent purity. NADH absorbs strongly at 340 nm where NAD does not, and that difference is the basis of the continuous spectrophotometric assay for almost every dehydrogenase. It is used as a cofactor and reductant in dehydrogenase assays, in coupled enzyme assay systems and as a standard in NADH determination. Each unit contains 50 mg. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.