NAD+ certificate of analysis: what the supplier report shows
Research context reviewed 30 October 2026The NAD+ certificate of analysis on PEPTALIAS reports 98.8% purity by HPLC for batch NAD-2026-588, against a minimum of 98.0%, and PEPTALIAS sells NAD+ in 500 mg (A$79.99) and 1000 mg (A$119.99) vials, both in stock on 30 October 2026. The report was issued by HK Qiangtai Technology Co., Ltd. and is published as the NAD+ supplier PDF without editing.
Prices on this page are list prices, and the product page always shows today's price.
It has one obvious fault: the page heading names a different compound from the one in the table. This guide explains that fault first, then the rest of the report.
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every living cell, not a peptide, which is why it sits under research compounds on the NAD+ product page. It is supplied for laboratory research only, not for human or veterinary use.
Why does the NAD+ COA heading say nicotinamide riboside?
The heading at the top of the report reads "NAD+ (Nicotinamide Riboside)", while the product table beneath it names NAD+ (nicotinamide adenine dinucleotide), gives CAS 53-84-9 and the formula C21H27N7O14P2, all of which match the PubChem record for NAD+. Nicotinamide riboside is a smaller molecule of about 255 g/mol against 663.43 g/mol for NAD+, so the two names cannot describe the same material.
PEPTALIAS records the error in its supplier document notes for NAD+.
What is on the NAD+ report
| Item | Printed on the report |
|---|---|
| Compound | NAD+ (nicotinamide adenine dinucleotide), freeze-dried powder |
| CAS, formula, weight | 53-84-9, C21H27N7O14P2, 663.43 g/mol |
| Batch | NAD-2026-588 |
| Manufactured, issued, expiry | 15 July 2026, 18 July 2026, 15 July 2028 |
| Purity by HPLC | 98.8% (minimum 98.0%) |
| Loss on drying | 1.4% (maximum 3.0%) |
| Heavy metals by ICP-MS | Under 5 ppm (maximum 10 ppm) |
| Microbial count | Under 50 CFU/g (maximum 100 CFU/g) |
| Sterility | Sterile, by filtration |
| Formats listed | 500 mg and 1000 mg, stored at minus 20°C |
The footer calls the two-page document a reference template for customer consultation purposes, so it is the manufacturer's reference record rather than a test of the vial you receive. The how to read a laboratory report guide explains the method behind these rows.
What the reported 98.8% HPLC result means
HPLC separates a dissolved sample into its components and reports the share that belongs to the main peak. At 98.8%, roughly 1.2% of the detected material was something else. The printed minimum is 98.0%.
HPLC does not measure how much powder is in the vial. Loss on drying, 1.4%, is the reference sample's loss of mass on heating, water and other volatile substances included; it does not determine retail fill mass. "Under" on the metals and microbial rows means a value below the limit, with the exact figure not printed.
500 mg or 1000 mg today
| Vial | Price | Per mg | Volume |
|---|---|---|---|
| 500 mg | A$79.99 | A$0.16 | 5 mL |
| 1000 mg | A$119.99 | A$0.12 | 10 mL |
Doubling the amount costs A$40.00 more, so the 1000 mg vial is 25% cheaper per milligram. Both formats appear on the report's specification line.
Why buy NAD+ here
- The 1000 mg vial at A$0.12 per milligram is the cheaper of the two NAD+ sizes, and both are in Australian stock.
- PEPTALIAS publishes a certificate of analysis for every batch it stocks where one exists; for NAD+ that is the NAD-2026-588 report, heading error and all, stated openly.
- The 98.8% result sits 0.8 points above the report's minimum, with metals and microbes under half their limits.
Choose a size on the NAD+ product page, or compare the other reports on the certificate of analysis hub.
Frequently asked questions
Is NAD+ a peptide?
No. NAD+ is a coenzyme with no amino acid chain, so PEPTALIAS lists it as a research compound rather than a peptide.
Does the heading error mean the NAD+ COA is wrong?
The heading names nicotinamide riboside while the table's name, CAS and formula correspond to NAD+. The document is inconsistent and only the issuer can clarify it.
What purity does the NAD+ certificate of analysis show?
98.8% by HPLC against a minimum of 98.0%, for batch NAD-2026-588, expiring 15 July 2028.
Should I order the 500 mg or the 1000 mg NAD+ vial?
If you need more than 500 mg, one 1000 mg vial at A$119.99 costs less than two 500 mg vials at A$159.98. Below that, the 500 mg vial is the smaller outlay.