The present invention relates to substantially pure metabolites of irara-clomiphene. The invention is also directed to pharmaceutical compositions comprising these metabolites and their use in treating disorders including secondary hypogonadism, type 2 diabetes, elevated cholesterol, elevated triglycerides, wasting, lipodystrophy, female and male infertility, benign prostate hypertrophy, prostate cancer, breast cancer, ovarian cancer and endometrial cancer.