Free shipping on orders $250+ Tracked shipping Bundle pricing — 2 of same / 5% · 3+ of same / 9% ≥ 99% purity Third-party lab tested Researcher-only catalog Free shipping on orders $250+ Tracked shipping Bundle pricing — 2 of same / 5% · 3+ of same / 9% ≥ 99% purity Third-party lab tested Researcher-only catalog

Certificates of Analysis

Every compound we supply is tested by an independent, third-party analytical laboratory. A Certificate of Analysis (COA) documents the testing results for a given lot so you can verify identity and purity before you begin your research.

What a COA covers

  • Identity — confirmation of the compound by mass spectrometry.
  • Purity — quantified by HPLC, with our reference materials verified at ≥ 99%.
  • Lot traceability — results are tied to the specific lot number on your vial.

COAs reflect testing results at the time of analysis and are provided so qualified researchers can confirm what they are working with. New to reading them? See our guide, Reading a Certificate of Analysis.

How to request a COA

Because our catalog is restricted to qualified researchers, COAs are provided on request to verified researcher accounts rather than posted publicly. To request one:

  1. Make sure you are signed in to your verified researcher account.
  2. Send us the product name and the lot number printed on your vial (for pre-purchase requests, just the product name).
  3. We will email the current COA — typical turnaround is 24 hours.

Request a COA →

For Research Use Only. Products are analytical reference materials for in-vitro laboratory research and are not approved by the FDA for any other purpose.