The lab report behind every lot
24 published certificates across 19 compounds, tested by an independent laboratory. Read them before you order.
The Certificate Library
Every published lot, newest first. Open a card to check the details.
All compounds are supplied strictly for laboratory research use.
Lot, date and laboratory, on every certificate.
Each certificate below comes from a laboratory that is separate from us, for the lot named on it.
- Published certificates
- 24
- Compounds covered
- 19
- Testing laboratory
- Freedom Diagnostics
- Each certificate covers one lot
- Per lot
Verification checklist
What to look for on a certificate.
Six things worth checking for every lot you receive.
- 01
Lot number
Match it to the number printed on your vial label.
- 02
Test date
When the independent laboratory tested the lot.
- 03
Laboratory
The third-party laboratory that produced the report.
- 04
Purity
The share of the sample that is the target peptide.
- 05
Identity
Confirms the compound is what the label says it is.
- 06
Net peptide content
How much peptide is in the vial compared with the label amount.
Find your batch.
Three ways in, all under a minute.
- 01
Search the library
Type the compound, or the lot number printed on your label, into the library above.
- 02
Open any product page
Each product page links to the certificate library, where every lot is listed.
- 03
Match your label
Compare the lot number on your vial with the certificate before you rely on the results.
Questions, answered.
What is a certificate of analysis (COA)?
A certificate of analysis is a report from an independent laboratory for one specific lot of a compound. It lists what was measured for that lot, such as purity, identity and net peptide content.
Where can I find the certificate for my order?
Each product page lists the current lot’s certificate. You can also search this library by compound name or by the lot number printed on your vial label, or email support@stackhausresearch.com with your order number.
How do I read a certificate?
Start with the lot number and test date, then check purity, identity and net peptide content. Match the lot number to the one on your vial before you rely on the results.
Is the laboratory independent?
Yes. Results come from a third-party laboratory that is not part of Stackhaus Research.
How can I check that a certificate file has not changed?
Every certificate PDF has a SHA-256 fingerprint. Open Verification details on a card to see it, then compare it with the fingerprint of the file you downloaded.
What does “archived” mean?
A lot is marked archived when a newer lot of the same compound is current. Archived certificates stay public so earlier lots can still be checked.
Need a certificate we haven’t published?
Email support with your order number and we will look for the lot’s documentation.
Email supportResearch compounds, documented lot by lot.
Browse the catalog, then check the certificate of analysis for the lot in your hands.
