cfd5bd82_r_chemical_names_and_functions__Functions
[Vitamins] K [Chemical Names] vitamin K1 (phylloquinone; phytonadione; phytomenadione) and vitamin K2 (menaquinone; menatetrenone) [Functions] 
it is a fat-soluble vitamin, which is necessary for normal clotting of blood. Vitamin K is required for the liver to make factors that are necessary for blood to properly clot (coagulate)
vitamins, their chemical names and functions
Functions