NAD+

Compound identity

Each row above is attributed to its source. Rows citing a database record are reference information about the molecule; rows marked catalog information describe this listing. Neither is a specification, an analytical result or a claim about any particular batch.

Research classification

Oxidized nicotinamide adenine dinucleotide, a dinucleotide coenzyme/cofactor. Not a peptide. PubChem records it as nadide (CID 5892). The reduced form, NADH, is a different molecule (CID 439153). This listing is research material and is not an approved medicine.

Chemical characteristics

• NAD+ contains a nicotinamide riboside and an adenosine joined by a pyrophosphate linkage. The nicotinamide ring is in the oxidized pyridinium state; that is what the “+” in NAD+ denotes, not a peptide charge.
• PubChem’s computed formula for CID 5892 is the inner-salt / zwitterion representation C21H27N7O14P2. Some chemical records write the cation separately. Those are representations of the same oxidized cofactor class, not proof of the exact form in a vial.
• NADH, the reduced form, has two additional hydrogen atoms (C21H29N7O14P2, 665.4 g/mol) and a dihydropyridine ring. NADH absorbs near 340 nm; NAD+ does not. That spectroscopic difference is a redox-state distinction, not a complete identity proof by itself.
• NADP+ / NADPH carry an additional phosphate and are different molecules again. A method that cannot distinguish these species cannot support a claim that a sample is NAD+.

Analytical methods

• A purity percentage for NAD+ is method-dependent and is only interpretable alongside the method conditions and the batch it describes.
• Reversed-phase or other chromatographic methods with ultraviolet detection around 260 nm can separate NAD+ from some related species under appropriate conditions, but absorbance at 260 nm is not specific to NAD+. NADH and several nucleotide degradation products also absorb in this region.
• NADH can be distinguished spectroscopically by absorbance near 340 nm, which NAD+ lacks. That observation speaks to redox state in the measured solution; it does not by itself identify every component of a mixture.
• Mass spectrometry or LC-MS can support identity by matching the expected mass, but NAD+ and NADH are close in mass and nucleotides can fragment in-source into interfering species. Chromatographic separation of the redox pair and of related nucleotides is required for the result to be interpretable (PMID 30830318).
• A chromatographic peak-area percentage does not establish enzymatic activity, does not establish that the peak is NAD+ rather than a co-eluting nucleotide, and does not establish the hydrate or salt composition of the solid.

The peptide HPLC and peptide mass-spectrometry guides on this site describe peptide methods. They are not a substitute for a method capable of distinguishing NAD+ from NADH and from related nucleotide species.

Stability and storage considerations

• The catalog listing is a lyophilized powder. Removal of water generally slows hydrolytic reactions relative to aqueous solution. That is a general chemical expectation, not a shelf-life for this listing.
• NAD+ is redox-active. In aqueous solution its chemical integrity can be affected by pH, buffer identity, temperature, light and time. Published work in common laboratory buffers found that NAD+ was comparatively retained in some buffers and substantially degraded in others over the same period (PMID 39598842). Those observations describe the solutions studied in that paper.
• Aqueous degradation of nicotinamide cofactors can produce related nucleotide species. A method that does not resolve those species cannot support a purity claim for NAD+.
• Do not apply a generalized “stable for X days” statement, a specific storage temperature, or a solution-stability figure from another preparation to this listing. Storage and handling expectations for a specific batch should be taken from that batch’s documentation.

The peptide stability guide on this site covers peptide degradation chemistry. NAD+ is a nucleotide coenzyme; its solution behaviour is condition-dependent and should not be inferred from peptide handling notes.

Batch testing

Every batch of NAD+ we sell has a supplier certificate of analysis and an independent laboratory report. We compare the two and sell a batch only if they match.

Both reports for your batch are available on request with every order.

We strongly encourage you to do your own independent testing. If your test results do not match the vendor reports, we offer a no-questions-asked refund.

Our guides on how to read a peptide certificate of analysis and what a purity figure does and does not mean cover what to look for in the documentation.

Ordering NAD+ in India

NAD+ is ordered through the catalog and finalised over WhatsApp or email, so that any question about specification or documentation is settled before the order is placed rather than after it. See the full guide to buying peptides in India for pricing across the catalog.

Dispatch timing. All orders are dispatched as soon as couriers are operating.

Distribution is within India. Material is supplied for in-vitro research and analytical applications only, and we do not supply for human or veterinary use.

Frequently asked questions

Can I buy NAD+ in India from Peptide Tactics?

Yes. NAD+ is listed as a 500 mg lyophilized vial with the price shown on this page, available to order for research use within India. It is a coenzyme listing, not a peptide listing.

Is NAD+ a peptide?

No. NAD+ is nicotinamide adenine dinucleotide, a dinucleotide coenzyme involved in redox biochemistry. It contains no amino-acid sequence and should not be classified with the peptide entries in this catalog.

What is the difference between NAD+ and NADH?

NAD+ is the oxidized form; NADH is the reduced form. PubChem records NAD+ as C21H27N7O14P2 at 663.4 g/mol (CID 5892) and NADH as C21H29N7O14P2 at 665.4 g/mol (CID 439153). They differ by two hydrogen atoms and by the oxidation state of the nicotinamide ring. This listing is for NAD+.

What documentation is available for NAD+?

Every batch has a supplier certificate of analysis and an independent laboratory report. Useful documentation for NAD+ should be capable of distinguishing the intended compound from NADH and from related nucleotide species. We compare the two and sell a batch only if they match. Both reports for your batch are available on request with every order. We strongly encourage you to do your own independent testing — if your results do not match the vendor reports, we offer a no-questions-asked refund.

How stable is this NAD+?

We do not publish a shelf-life, storage temperature or reconstituted stability period for this listing. NAD+ is redox-active and, in solution, its integrity depends on conditions such as pH, buffer, temperature, light and time. Those general chemical points are not a specification for this batch. Ask for the batch documentation if storage conditions matter for your work.

How quickly are NAD+ orders dispatched?

All orders are dispatched as soon as couriers are operating. Orders received outside courier hours are dispatched as soon as couriers reopen. We do not quote a delivery date, because transit time is the courier's and not ours.

Can you source a compound that is not listed?

Yes. Send the compound name, quantity and any specification that matters — salt form, purity threshold, documentation requirement — and we will investigate sourcing options and tell you what is possible, what it would cost and what documentation exists.

Is NAD+ intended for human use?

No. Everything in this catalog is supplied for in-vitro research and analytical applications only, and not for human or veterinary use. We do not provide dosing, administration guidance or any therapeutic recommendation, and we cannot supply material for those purposes.

What format is NAD+ supplied in?

The catalog entry is a 500 mg vial of lyophilized powder. That quantity and presentation are catalog information describing this listing, not a usage recommendation.

Sources

• PubChem CID 5892 — nadide / NAD+, CAS 53-84-9
• PubChem CID 439153 — NADH (reduced nicotinamide adenine dinucleotide)
• Wolfe K.D. et al. Long-Term Stability of Nicotinamide Cofactors in Common Aqueous Buffers: Implications for Cell-Free Biocatalysis. Molecules, 2024 (PMID 39598842)
• Bustamante S. et al. Quantifying the cellular NAD+ metabolome using a tandem liquid chromatography mass spectrometry approach. Metabolomics, 2017 (PMID 30830318)

Related compounds

Further reading

• Lyophilized peptides explained — Almost every research peptide arrives as a lyophilized solid.
• Understanding peptide certificates of analysis — A certificate of analysis is a record of what was measured on a specific batch.
• Peptide purity explained — A purity percentage on its own carries less information than it appears to.