Redox cofactors are the molecules that carry reducing equivalents through cellular metabolism, and they double as substrates for entire enzyme families. Pyridine…
Read the full description and all 3 compounds →NAD+ New
Pyridine dinucleotide coenzyme (nicotinamide adenine dinucleotide) central to cellular redox transfer and a substrate for sirtuin and PARP enzymes. Studied in vitro for NAD-dependent enzyme kinetics.
Also searched as NAD · nicotinamide adenine dinucleotide · beta-NAD
At a glance
NAD+ is pyridine dinucleotide coenzyme · redox carrier and sirtuin/PARP substrate.
- Supplied as
- Lyophilized (freeze-dried) powder in a sealed vial
- Vial sizes
- 500 mg
- Purity
- HPLC-verified, 99% or higher
- Current batch
- 26032501, issued March 18, 2026
- Certificate of analysis
- Published in full for this batch
- Ships
- From Texas to all 50 US states
- Intended use
- Laboratory research only. Not for human or veterinary use.
Chemical data
Handling & verification
NAD⁺ (β-nicotinamide adenine dinucleotide) is a pyridine dinucleotide coenzyme central to cellular redox reactions and a substrate for sirtuins and PARP enzymes. It is not a peptide, and is supplied as a reference compound for in vitro enzymology and metabolic work. Ships as a lyophilized powder, HPLC-verified at ≥99% purity.
Presentation and storage
Supplied lyophilized in a sealed vial. Store the sealed vial at −20 °C for long-term storage; refrigeration at 2–8 °C is adequate over shorter periods. Keep away from light and moisture.
Allow the vial to reach room temperature before opening, so atmospheric moisture does not condense onto the cake. NAD⁺ is hygroscopic and hydrolyses in solution, particularly at alkaline pH — keep the vial sealed and dry, and prepare working solutions shortly before use.
Reconstitution
Reconstitute with bacteriostatic water. Solutions are least stable at alkaline pH, so prepare what you need rather than holding a large reconstituted stock.
- 500 mg vial in 5 mL diluent gives a 100 mg/mL stock
- 500 mg vial in 10 mL diluent gives a 50 mg/mL stock
- 500 mg vial in 20 mL diluent gives a 25 mg/mL stock
Once reconstituted, store at 2–8 °C and protect from light. Avoid repeated freeze-thaw cycles — aliquot the stock if it will be drawn on more than a few times. Our reconstitution calculator works out any other combination.
Verification
Every lot is assayed by HPLC and released at ≥99% purity, and a per-lot certificate of analysis is available stating the batch number, the assay method and the measured purity. If you would like the certificate for the batch currently shipping before ordering, ask and we will send it.
Common questions
Does NAD+ come with a certificate of analysis?
Yes. Every lot of NAD+ ships with its own certificate of analysis showing HPLC purity, and the current certificate is published on our COA page before you buy — you do not have to order first or email anyone to see it.
What purity is NAD+?
HPLC-verified at 99% or higher. The certificate for each lot states the measured figure, the detection wavelength and the method used, so the number can be checked rather than taken on trust.
How is NAD+ supplied and where does it ship?
It is supplied as lyophilized (freeze-dried) powder in a sealed vial, protected against light and impact. Full US shipping, operating from Texas. Delivery estimates are provided by the carrier at checkout.
How should NAD+ be stored?
Keep the lyophilized vial cold and dark — refrigerated for near-term use, frozen for longer storage. Once reconstituted it belongs in the refrigerator and its usable life is measured in weeks rather than months. Aliquot rather than thawing the same vial repeatedly, because freeze-thaw cycles cost more stability than most people expect.
How do I reconstitute NAD+?
Add bacteriostatic water slowly down the inner wall of the vial so the stream does not strike the powder directly, then let it dissolve on its own — swirl gently if needed, never shake. The volume you add sets the concentration, so decide the concentration first and work backwards. Our free reconstitution calculator does that arithmetic and gives the volume to draw per aliquot.
Is NAD+ for human use?
No. NAD+ is supplied strictly as a reference material for laboratory research use only. It is not a drug, food, cosmetic or medical device, it is not for human or veterinary consumption, and it is not intended to diagnose, treat, cure or prevent any disease. We do not provide dosing guidance or protocols of any kind.
See the certificate · Reconstitution calculator · All questions
Handling guides
Other compounds
For laboratory and research use only. Not for human or veterinary use, diagnosis, or consumption. Products are sold to qualified researchers and are not drugs, foods, or cosmetics.