Displaying 3 results of Phytonadione Stable Isotopes Phytonadione is a fat-soluble vitamin K that is essential for blood clotting. Stable isotopes of phytonadione are used in research studies to trace the metabolism and distribution of vitamin K in the body. These isotopes are labeled with non-radioactive elements that do not alter the chemical properties of the molecule, allowing for precise measurements and analysis. Phytonadione stable isotopes are an important tool for understanding the role of vitamin K in health and disease.