Tobramycin 94.0%

PMSF is often used in lysis buffer to assist in preserving proteins of interest during protein isolation and sample preparation by inhibiting proteases that would otherwise degrade proteins after cell or tissue lysis. PMSF is unstable in aqueous media. Thus stock solutions of PMSF are generally prepared in anhydrous organic solvents (e.g. 100% ethanol or anhydrous isopropanol) prior to use in aqueous media.

For R&D use onlynot for drug household or other uses.

Phenylmethanesulfonyl fluoride (PMSF) is a widely used serine protease inhibitor effective against such enzymes as chymotrypsin thrombin and trypsin. PMSF acts as an inhibitor via sulfonation of the hydroxyl residues of serine residues at the reactive sites of serine proteases.