
Ammonium Persulfate (APS) CH009 — powder, (NH₄)₂S₂O₈, MW 228.2 g/mol. Free-radical initiator for SDS-PAGE and native PAGE polyacrylamide gel polymerization (used with TEMED). Prepare 10% (w/v) fresh aqueous solution; use at 0.1% final in gel. Strong oxidizer — handle with care. Store powder at room temperature, sealed.