Supplied as a lyophilized powder. Reconstitute in sterile water or another solvent compatible with your own protocol; many researchers prepare aqueous stock solutions, optionally with bacteriostatic water for short working-stock use. Allow the vial to reach room temperature before opening, add solvent slowly down the vial wall, and swirl gently rather than shaking to dissolve. Store the lyophilized powder at -20 C; after reconstitution, store aliquots refrigerated (2-8 C) for short-term use or frozen at -20 C for longer-term storage, and minimize freeze-thaw cycles. Protect from light, heat, and moisture. Any downstream handling is performed by the buyer according to their own laboratory protocol and applicable safety practice.