Chiral Separation of Ormeloxifene Hydrochloride, a Non-steroidal Contraceptive Agent.

Ormeloxifene hydrochloride (Centchroman) is once-a-week non-steroidal oral contraceptive agent marketed in India and other countries. In this study, we report a validated isocratic high-performance liquid chromatographic (HPLC) method for chiral separation of D- and L-ormeloxifene hydrochloride. This method is capable of baseline separation of its D- and L-isomers. HPLC separation was achieved on a Lux 5µ cellulose-1 with a mobile phase comprising hexane, isopropanol, methanol and triethylamine (90:10:1:0.5). Validation parameters such as limit of detection, limit of quantitation, linearity, precision, accuracy, specificity and preformulation studies were conducted according to new guidelines of International Conference on Harmonization.