Displaying 2 results of Ethinylestradiol Impurities Ethinylestradiol is a synthetic estrogen that is commonly used in oral contraceptives. However, the production of ethinylestradiol can result in the formation of impurities, which can potentially affect the safety and efficacy of the drug. These impurities can include degradation products, residual solvents, and other contaminants that may be harmful to human health. Therefore, it is essential to monitor and control the levels of ethinylestradiol impurities during the manufacturing process to