Used primarily in pharmaceutical research and development, this impurity is critical for ensuring the purity and efficacy of doxercalciferol, a medication used to treat secondary hyperparathyroidism in patients with chronic kidney disease. It aids in the identification, quantification, and control of impurities during the manufacturing process, ensuring compliance with regulatory standards. Additionally, it is utilized in analytical studies to develop and validate testing methods, contributing to the production of high-quality pharmaceutical products.