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Bench Grade Peptides
Quality

Certificates of Analysis.

A Certificate of Analysis verifies identity and purity for the specific lot in a vial. Today we publish QR-linked COAs on 36 of our 37 products, each one in the public library.

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 find published lot certificates

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. Where a lot’s certificate is published, the product page displays it, and the lot number and the QR code on your vial label open it directly.

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

Lots are 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.

Browse the catalog