NAD+ catalog guide to form and assay records
Publisher disclosure. Amplified Labs publishes this reference and sells the featured item. The comparison describes public catalog records.
All four NAD+ listings give CAS 53-84-9. The shared CAS number helps identify the listed chemical. Your lab still needs to check the stated form, the assay basis and the certificate for the received lot. The comparison shows where to find each detail.
Laboratory research use only. These materials are for qualified laboratory work. The reference does not cover use in humans or animals.
Compare four catalog listings
NAD+ is the oxidized form of nicotinamide adenine dinucleotide. NADH is its reduced form. Within the four NAD+ listings, Cayman explicitly names a free acid and Sigma-Aldrich explicitly names a hydrate. The term beta-NAD identifies the beta form, so look for separate wording about hydration or free acid. For assay comparisons, record whether the figure comes from HPLC area or neutralization titration on an anhydrous basis.
Choose two listings
- Listed form
- Catalog identifier
- Documentation shown
- Listed form
- Catalog identifier
- Documentation shown
| Supplier | Listed form | Catalog identifier | Documentation shown |
|---|---|---|---|
| Amplified Labs | Lyophilized beta-nicotinamide adenine dinucleotide in a vial | CAS 53-84-9 | Link to a COA Finder filtered to this product |
| Cayman Chemical | NAD+ (free acid), item 16077 | CAS 53-84-9 | Product insert, SDS, batch certificate lookup |
| Sigma-Aldrich | β-Nicotinamide adenine dinucleotide hydrate, product N1511 | CAS 53-84-9; product number N1511 | Certificates of Analysis area and a separate Documents option |
| TCI | β-Nicotinamide adenine dinucleotide, product D0919 | CAS 53-84-9; product number D0919 | Specifications distinguishing HPLC area % from neutralization titration on an anhydrous basis |
Featured Amplified Labs listing
Amplified Labs
Record the product name and CAS 53-84-9 on the order. Match the received vial’s label and lot reference to the report in the product’s COA Finder.
View catalog documentation · Amplified LabsCayman Chemical
The free-acid form is stated in the product name. Use the batch certificate lookup to connect a received lot to its own report.
View catalog documentation · Cayman ChemicalSigma-Aldrich
Carry product number N1511 through purchasing and receiving records. Retrieve the certificate for the lot number on the container from the Certificates of Analysis area instead of relying on a representative file.
View catalog documentation · Sigma-AldrichTCI
The specifications separate two assay bases. A figure from one basis cannot be compared directly with a figure from another, so this page draws no numerical purity comparison across vendors.
View catalog documentation · TCI
To look up a received lot, open the Amplified Labs COA Finder for NAD+ and match the lot on the label.
How the records fit together
Oxidized or reduced
Confirm that the label and COA identify NAD+ or beta-NAD, not NADH. If the reduced form appears, the record does not match an NAD+ specification.
Form and assay basis
Because the CAS number is shared, check the stated form (free acid or other) and note whether any purity figure comes from HPLC area % or from titration on an anhydrous basis.
Lot record
Match the lot number on the received vial to its own COA. A sample certificate or an archive entry for another lot does not describe the delivery.
Practice with three sample records
Open a hypothetical case and read the decision and the evidence behind it.
Reduced form on the label
The order and specification name NAD+. The received label identifies NADH.
Decision. Do not accept the item under the NAD+ specification.
NADH is the reduced form and a distinct material with a distinct identifier.
Same CAS, unstated form
The specification calls for NAD+ (free acid). The received label shows CAS 53-84-9 and names beta-NAD without stating a form.
Decision. Check the lot COA and specification for the form before review continues.
A shared CAS number does not confirm the form the specification names.
Different assay bases
One record states purity as HPLC area %. Another states it by neutralization titration on an anhydrous basis.
Decision. Compare each figure only against a specification written on the same basis.
The two bases measure different things, so the figures are not directly comparable.
Receiving checklist
Common documentation questions
If two listings share CAS 53-84-9, are they the same product?
The CAS number identifies the chemical, but form, assay basis and lot results can still differ. Check each against the specification and the lot COA.
Can I compare two assay percentages directly?
First check how each figure was obtained and whether it uses an anhydrous basis. HPLC area percentage and neutralization titration describe different measurements. Compare a result against a specification that uses the same basis.
Source catalog records
Listings reviewed . A listing or sample certificate does not establish the result for a different lot.