R-(+)-Warfarin SodiumOptical Rotation: [a]D23 = +125 (c = 3.2, ethanol)Optically active R enantiomer of Warfarin Sodium. Used for preventing thrombosis and embolism. A synthetic derivative of coumarin. Decreases blood coagulation by inhibiting vitamin K epoxide reductase.Specifications Product ID W0275 Product Name R-(+)-Warfarin Sodium Formula Wt. 330.31 Purity ≥98%