Certificates of Analysis.
Every product we ship is accompanied by a Certificate of Analysis verifying identity and purity for the specific lot in your vial.
What’s on a COA
- Compound name, CAS number, molecular formula, molecular weight
- Lot number and manufacture date
- HPLC chromatogram with integrated peaks and identified purity percentage
- Mass spectrometry identity confirmation (MS/MS or LC-MS as applicable)
- Appearance, solubility, and storage recommendations
- Residual solvents and water content where measured
How to access yours
You don’t need to place an order, create an account, or email anyone. Every published COA is in the public COA library, browsable by compound and lot, and each product page displays the current lot’s certificate. A printed copy also ships inside every box, and the QR code on your vial label resolves straight to your compound’s certificate section.
For an archived certificate from an older lot that has rotated out of the library, email admin@benchgradepeptides.com with your order number.
Third-party verification
Every lot is sent to an independent third-party analytical laboratory for HPLC purity analysis and mass-spectrometry identity confirmation before it is released for sale. The laboratory issues the Certificate of Analysis in Bench Grade Peptides’ name, and we publish it — on the product page, and in the COA library. No lot ships on the synthesis facility’s word alone.
Certificates for newly manufactured lots are published as the laboratory releases them, so a very recent lot may appear in the library a few days after it enters the catalog. If a product page shows a prior lot’s certificate, the current lot’s analysis is in progress — and its results publish to the same place when complete.
Re-test it yourself
Under the Bench Grade Guarantee, you can send any vial to a certified third-party laboratory of your choosing. If the result disagrees with our published COA, we refund the test fee, the order, and the shipping, and add $100. The certificates below are falsifiable — that is the point of publishing them.