Diquafosol is a dinucleoside derivative of uridine that acts as a selective P2Y2 receptor agonist. Diquafosol is used as a therapeutic agent in the treatment of dry eye syndrome.Appearance:White to Off-White SolidPurity:~90%Melting Point:>179°C (dec.)Storage:Hygroscopic, -20°C Freezer, Under inert atmosphereSolubility:Water (Slightly)Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.