Anyone can print "99% pure" on a label. What separates a serious supplier is documentation you can check against the specific lot you received. That's why every batch we ship carries, and publishes, its own certificate of analysis.

What batch documentation should let you do

  • Match the lot number on your vial to a specific published report.
  • See the methods used and the measured results, not just a headline figure.
  • Distinguish one production batch from another, rather than a single marketing page reused for every order.

Purity figures and the “SEE COA” rule

We show a numeric purity only where it is the verified figure for a specific batch; otherwise our listings read SEE COA. Putting an unverified number on a page — or worse, on physical packaging — is a bigger liability than simply pointing to the document that proves it.

Verify any batch on our Certificates of Analysis page, or ask us for the current COA on any compound before you buy.

All products are supplied strictly for laboratory research use only. Not for human or veterinary use.