P21 (P021) is a supplier-designated P21/P021 research peptide supplied as a lyophilized powder. Available specifications: 5mg*10vials. For laboratory research use only.
Public nomenclature and mechanistic evidence for supplier-designated P21 materials are limited. Experiments should rely on the lot-specific sequence and mass record and should not assume a mechanism from the product name alone.
This product is supplied as a lyophilized powder. Store unopened vials at 2-8°C, protected from light and moisture, for up to 2 years.
After reconstitution with bacteriostatic water, store at 2-8°C and use within 30 days. Label the vial with the preparation date, use sterile handling, swirl gently rather than shaking, and avoid repeated freeze-thaw cycles.
Small quantities of lyophilized material can form a thin cake, film, or light residue on the vial wall or base. Check the lot documentation rather than judging quantity by appearance.
Add bacteriostatic water slowly down the vial wall, swirl gently, and allow time for equilibration. Do not shake vigorously. Quarantine the vial if persistent particles, cloudiness, or discoloration remains.
Divide the labeled mass in one vial by the added solvent volume. Reconstitution volume does not confirm purity or recovered mass.
Review the lot-specific COA, identity result, purity result, storage history, and specification label before preparing the assay.
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