β-Nicotinamide Adenine Dinucleotide (NAD), also known as Coenzyme I, is an essential naturally occurring coenzyme widely existing in all living organisms. It acts as a core redox carrier participating in hundreds of intracellular metabolic reactions, occupying a central position in energy metabolism, mitochondrial function, cellular signal transduction and DNA repair related laboratory research.

In biochemical pathways, NAD can reversibly convert between oxidized form NAD? and reduced form NADH. During catabolic reactions, NAD? accepts electrons and hydrogen to generate NADH; NADH subsequently delivers electrons in the electron transport chain to facilitate ATP synthesis. Beyond redox reactions, NAD serves as the substrate for multiple enzyme families including sirtuins, PARPs and CD38. These enzymes rely on NAD to mediate epigenetic regulation, DNA damage repair, inflammatory response and cellular senescence processes, making NAD a hotspot compound in aging biology, metabolism, oncology and neurodegeneration research.

Our NAD raw material is produced through strict biochemical synthesis and purification workflows. The finished crystalline powder is processed with refined purification technology to eliminate related impurities, residual salts and degradation by-products. Each batch undergoes comprehensive quality verification. HPLC quantifies purity, UV spectrum confirms compound identity, while moisture and heavy metal indicators are tightly controlled to satisfy standards for enzyme activity assays, cell culture and in-vivo animal studies.

NAD is extremely hygroscopic and sensitive to heat and light. Once dissolved in water, it will gradually decompose under room temperature and acidic/alkaline environment, which will reduce biological activity rapidly. For experimental operation, prepare aqueous solution right before testing. Do not store dissolved solution for a long time. The lyophilized crystalline form can retain stable quality for long-term cold storage when kept sealed away from moisture.

Common research applications include enzyme kinetics research, mitochondrial energy metabolism experiments, DNA repair mechanism exploration, cellular aging models, screening of sirtuin modulators, and metabolic pathway related biochemical testing.