Northgate Analytical
Verify a peptide Certificate of Analysis
An independent registry of third-party laboratory results for research peptides. Enter the batch code from your product to read its certificate.
Look up a certificate
Enter the batch code from the label or certificate.
No code to hand? Learn what this registry is.
About the registry
A public record of what was tested
Northgate Analytical files third-party Certificates of Analysis (COAs) for research peptides under the batch code printed on each product. A record documents the peptide, its manufacturer, the reported purity, molecular-weight confirmation, the laboratory that performed the test and the date it was carried out.
Certificates are published exactly as received from the named laboratory. The registry does not manufacture, sell or endorse any product, and does not alter or reinterpret results.
How verification works
Three steps to check a batch
Find the batch code
It is printed on the product label and on the certificate itself, usually near the lot or batch number.
Enter it above
Codes are case-insensitive. Only an exact batch code returns a record; there is no public list to browse.
Read the certificate
See the reported purity, test method, testing laboratory and date, and open or download the source document.
What a certificate shows
Every record, in a consistent format
- Peptide name and manufacturer
- Reported purity (%) and pass / fail status
- Molecular weight confirmation
- Test method (HPLC, LC-MS)
- Testing laboratory and test date
- The source certificate document
Batch-level
A certificate applies only to the single batch it names, never to a product line as a whole.
Third-party
Results come from independent laboratories and are transcribed exactly as printed.
Not an endorsement
Publication here is a record that testing took place, not a recommendation of any product.
Publication of a certificate on this site does not constitute an endorsement of any product, manufacturer or supplier. Nothing on this site is medical advice.