abstract |
Disclosed is non-solvated crystalline 6-hydroxy-3-(4-[2-(piperidin-1-yl)ethoxy]phenoxy)-2-(4-methoxyphenyl)benzo[b]thiophene hydrochloride, also known as arzoxifene, having an X-ray diffraction pattern comprising at least one of the peaks: 7.3 ± 0.2, 15.5 ± 0.2, 15.9 ± 0.2, and 17.6 ± 0.2° in 2 theta, when obtained from a copper radiation source (CuKalpha; lambda = 1.54056 angstroms). |