Selected · verify-first

The supplier we checked against the kit.

To keep the guide clean and educational, we keep our selected supplier on this single page. It's the one that answers the request the way this kit teaches: an independent Certificate of Analysis per batch, HPLC purity with LC-MS identity, and a lot number you can match to the vial.

• Independent COA per lot — purity by HPLC, identity by LC-MS, tied to the exact batch.
• Answers the request — sends the batch-specific certificate without friction.
• Verify anyway — always read the COA for your specific lot before you complete a purchase.