Saquinavir mesylate (Standard) (Ro 31-8959/003 (Standard)) is the analytical standard of Saquinavir mesylate (HY-17003). This product is intended for research and analytical applications. Saquinavir (Ro 31-8959) mesylate is an orally active HIV protease inhibitor that can be used in the research of AIDS. Saquinavir mesylate also has anti-inflammatory activity and can induce apoptosis of human red blood cells.