The solubility of cyproterone acetate
in 14 pure solvents, such
as methyl tert-butyl ether, xylene, 1-butanol, 1-propanol,
tetrahydrofuran, ethanol, ethyl acetate, isopropanol, acetone, acetonitrile,
dimethylformamide, methanol, water, and trichloromethane, and mixed
solvents of water + ethanol have been determined at temperatures from
273.15 to 318.15 K by applying the analytical method of high-performance
liquid chromatography. The solubility results in 14 solvents were
fitted by the modified Apelblat equation, van’t Hoff equation,
λh equation, NRTL equation, UNIQUAC equation,
and Wilson equation. The solubility results in the binary solvents
of water + ethanol were fitted by the modified Apelblat equation,
van’t Hoff equation, λh equation, NRTL
equation, UNIQUAC equation, Jouyban–van’t Hoff equation,
and Jouyban–Apelblat equation. The solubility of cyproterone
acetate in 14 pure solvents and mixed solvents increased with increasing
temperature. The solubility of cyproterone acetate in the mixed solvents
increased with the increasing of the mole fraction of ethanol. The
computed results by way of the modified Apelblat equation, van’t
Hoff equation, λh equation, NRTL equation,
UNIQUAC equation, Jouyban–van’t Hoff equation, and Jouyban–Apelblat
equation were matched with the actual results. The actual results
and computed results are very useful in the separation and synthesis
process of cyproterone acetate.