P-21

Yes. Every lot of P-21 (CAS 1246751-68-7) is tested for identity and purity to ≥99% by HPLC, and a lot-matched Certificate of Analysis is available for each batch.

Yes. The lot-matched COA is linked on this page and covers identity, purity, and the full analytical panel. If a COA isn't shown for the strength you need, Steel City Labs can send it on request before you order.

Steel City Labs supplies licensed physicians, clinics, and healthcare practices only. Accounts are verified before ordering is enabled, and this product is not sold to the general public.

Supplied as lyophilized powder. Store lyophilized at -20°C; protect from light and moisture. Reconstitute with bacteriostatic water; refrigerate reconstituted solution at 2-8°C. Soluble in bacteriostatic water; consult the product COA for specific solvent recommendations.

Orders confirmed before 12pm CT typically ship the same business day from our U.S. facility with tracking. Steel City Labs can confirm current lead time and cold-chain handling for your account.