QSC Methylene Blue (Phenothiazine / Mitochondrial Electron Carrier / MAO Inhibitor) — ≥99% HPLC purity, MS confirmed, Janoshik COA. 1KG bulk. Research use only.
QSC Tadalafil (long-acting PDE5 inhibitor, T½ ~17.5h, high PDE5/PDE6 selectivity) — 1KG bulk raw powder. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.