
PMSF G034 — phenylmethylsulfonyl fluoride, irreversible serine protease inhibitor. MW 174.19 g/mol (C₇H₇FO₂S). Working concentration 0.1–1 mM; ~30–60 min aqueous half-life — add fresh at lysis. For protein extraction, Western blot, and immunoprecipitation sample preparation. RUO.