Sourcing guide · research use only
Where to buy NAD+ for research.
NAD+ is a dinucleotide coenzyme studied across laboratory metabolism research — not a peptide. That one fact changes everything about how you verify it: there is no sequence to read by mass spec, its identity is confirmed by HPLC and UV instead, and it is easily confused on a label with NADH, NMN, NR, and its own breakdown products. This guide covers what a real NAD+ certificate of analysis has to prove, why a coenzyme COA differs from a peptide’s, and where Titan’s documented research catalog fits. It makes no human-use, dosing, or efficacy claims.
Before you buy
What a NAD+ COA must prove.
A NAD+ document has to confirm a coenzyme, not a peptide — which means identity by HPLC and UV instead of sequence mass spec, and a chromatogram that resolves NAD+ from the related nucleotides and breakdown products it is so easily confused with. Run any NAD+ listing against this table before you trust the purity number on it.
| What to check | What a real COA shows | Red flag |
|---|---|---|
| Identity (not peptide MS) | Because NAD+ is a nucleotide coenzyme rather than a peptide chain, identity is confirmed by HPLC retention against a reference standard plus characteristic UV absorbance — there is no amino-acid sequence to read by mass spec, so a COA that only quotes a peptide-style purity number is verifying the wrong kind of molecule | A "peptide purity" figure or a sequence claim — NAD+ has no sequence, so that document was not written for this compound |
| Degradation-product resolution | NAD+ readily hydrolyzes to nicotinamide and ADP-ribose and is easily confused on a label with NADH, NMN, or NR. A real COA shows an HPLC chromatogram that resolves NAD+ from those related species — the separation is the proof, not the headline percentage | A round "99%+" with no chromatogram, so you cannot tell NAD+ from its breakdown products or its nucleotide cousins |
| Water content / hygroscopicity | NAD+ powder is strongly hygroscopic and moisture- and heat-labile, so documentation should state water content and address storage — a coenzyme that pulls in water degrades in the bottle in a way a stable peptide salt does not | Silent on moisture or storage, as if the powder were indefinitely stable at room temperature |
| Purity figure (HPLC, method named) | Purity stated with the HPLC method named and the chromatogram shown, run against an NAD+ reference — a percentage means little without the method and the trace behind it | An unsourced number with no method, no reference standard, and no trace |
| Lot / batch + compliance | A lot code matching the unit you receive, with documentation silent on human use | A generic reused COA, a mismatched lot, or anti-aging / energy / longevity / human-use claims |
NAD+ is a coenzyme, not a peptide — it is verified differently
Nicotinamide adenine dinucleotide (NAD+) is a dinucleotide coenzyme studied across laboratory metabolism research. It is not a peptide, so none of the sequence-by-mass-spec logic that confirms a research peptide applies. Identity is established instead by HPLC retention against a reference standard and the molecule's characteristic UV absorbance. That single fact reframes the whole purchase: a COA built for a peptide chain — quoting sequence or peptide purity — was not written for NAD+, and should make you question the source.
How to read a COA →The degradation-product problem
NAD+ hydrolyzes to nicotinamide and ADP-ribose, and on a marketing label it is routinely confused with its relatives NADH, NMN, and NR. A purity number cannot tell those apart — only a chromatogram can. The verification point that matters for NAD+ is whether the HPLC trace resolves the coenzyme from its breakdown products and its nucleotide cousins. When a source publishes the separation, you can see what you are buying; when it publishes only a percentage, you are trusting a label.
What a documented supplier looks like →What Titan stocks (honest)
Titan does not currently list NAD+ in its research catalog. Rather than ship a coenzyme it does not test in-house, this page exists to give the verification standard that applies to any NAD+ source and to point researchers to the documented peptides Titan does carry — each HPLC-verified, lot-matched, and supplied for research use only. The same discipline that should govern a coenzyme purchase is the discipline Titan applies to its in-catalog compounds.
Browse documented compounds →Red flags on NAD+ listings
Walk away from any NAD+ source whose documentation carries anti-aging, energy, longevity, or other human-use claims — that is a compliance red flag, not a quality spec. Be skeptical of a COA that quotes a peptide-style sequence or purity for a non-peptide, a percentage with no chromatogram resolving NAD+ from NADH / NMN / NR or its breakdown products, a hygroscopic powder sold with nothing said about moisture or storage, a reused generic document, or a lot code that does not match the unit.
A documented sourcing guide →How Titan handles research-compound sourcing
Documented, lot-matched, crypto checkout.
- 1. Verify the document before the molecule. For a coenzyme like NAD+, confirm the COA establishes identity by HPLC against a reference standard, shows a chromatogram resolving it from NADH / NMN / NR and its breakdown products, names the method, and states water content — not a peptide-style sequence or a bare percentage.
- 2. Lot-matched documentation. Titan’s in-catalog research peptides ship referenced to a batch code with an HPLC purity target and identity confirmation — the same standard you should demand of any NAD+ source.
- 3. Crypto-only checkout. USDC, BTC, and SOL accepted; stablecoin keeps the total fixed from cart to on-chain confirmation.
- 4. Verify it yourself. Match the lot code to the unit and read the chromatogram — for a coenzyme this easy to confuse, never accept a purity number without the trace behind it.
NAD+ is a dinucleotide coenzyme studied in laboratory metabolism research. Titan does not currently stock it; this guide gives the verification standard that applies to any NAD+ source and points to the documented, HPLC-verified research peptides Titan does carry. Everything in the catalog is supplied strictly for research use only, with no human-use, dosing, energy, anti-aging, or longevity claims. This page is about sourcing and verification, not use.
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