Description
What it is
NAD+ (nicotinamide adenine dinucleotide, oxidised form) is a coenzyme, not a peptide. It has no amino acid sequence. It is a dinucleotide built from two nucleotides, one carrying nicotinamide and one carrying adenine, joined through a pyrophosphate bridge and two ribose sugars, with the molecular formula C21H27N7O14P2 and a molecular weight of roughly 663.4 g/mol for the free acid. AxYn supplies it as a 500 mg research vial, as the free acid or disodium salt. Its precursors NMN and NR are separate, distinct molecules.
Research context
NAD+ is studied at the biochemical and mitochondrial level as a central redox cofactor. As the NAD+/NADH couple it shuttles electrons in metabolism and serves as the required substrate for the sirtuin, PARP and CD38 enzyme families. It is used strictly as a reference material for in-vitro research by qualified professionals.
76307 studies indexed on PubMed (NIH) for NAD+ as of August 2026. A measure of research volume only, not a claim of efficacy.
Handling and storage
Supplied as a lyophilised powder for reconstitution with sterile water in a research context. Unlike a typical lyophilised peptide, NAD+ is hygroscopic and more sensitive to moisture, heat and pH, and can hydrolyse toward nicotinamide and ADP-ribose, so cold, dry, dark storage matters and reconstituted solution is short-lived.
Testing and quality
Every batch is third-party tested. Because it is a dinucleotide rather than a peptide, its Certificate of Analysis should show HPLC purity with chromatogram, UV and mass spectrometry identity confirming the oxidised NAD+ form, the salt form, and a water-content note. Supplied for laboratory research use only. Not for human or animal consumption.
Specification
Frequently asked questions
Research handling and related compounds
New to handling lyophilised material? See our reconstitution guide, the storage and shelf-life guide, and how to read a Certificate of Analysis.
Related research compounds in Longevity & Anti-Ageing: SS-31, MOTS-c, Epithalon.


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