According to earlier investigations 2-(4-(2,2-dichlorocyclopropyl)-phenoxy)-propane (4) ought to be a metabolite of the hypolipidemic agent ciprofibrate (1). However, 4 could not be detected in plasma or in urine after administration of a dose of 2100 mg 1 during the course of a multiple-dose-study. Therefore, the compound described in literature must be an unknown one and the existence of 4 as a metabolite of 1 is excluded.