
Non-proprietary name: Cilostazol (JAN).
Chemical name: 6-[4-(1-Cyclohexyl-1H-tetrazol-5-yl)butyloxy]-3,4-dihydroquinolin-2(1H)-one.
Molecular formula: C20H27N5O2.
Molecular weight: 369.46
Melting point: 158-162°C.
Cilostazol occurs as white to pale yellowish white crystals or crystalline powder. It is slightly soluble in methanol, in ethanol (99.5) and in acetonitrile, and practically insoluble in water.