Displaying 7 results of Ergocalciferol Stable Isotopes Ergocalciferol stable isotopes are non-radioactive isotopes of ergocalciferol, also known as vitamin D2. These stable isotopes are used in various scientific studies and medical applications, including clinical research and diagnostic testing. The use of stable isotopes allows for precise and accurate measurements in these applications. Ergocalciferol stable isotopes are also used in the development and testing of new drugs for treating vitamin D deficiency and other related diseases.