Description_x000D_ General description_x000D_ Vitamin K1/Phylloquinone is a prenylated naphthoquinone. It is produced by plants, green algae and some species of cyanobacteria._x000D_ Application_x000D_ Vitamin K1 has been used in the preparation of culture media._x000D_ Packaging_x000D_ 1, 5, 10 g in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Vitamin K1 (Phylloquinone) is a lipid soluble polycyclic aromatic ketone used as a cofactor in the formation of coagulation factors II (prothrombin), VII, IX and X; anticoagulant factors protein C and S and as a cell signaling factor. Vitamin K1 is essential for blood coagulation, bone and vascular metabolism. Phylloquinone from green leafy vegetables and vegetable oil is the most important dietary source of vitamin K for humans._x000D_ Other Notes_x000D_ Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. V3501.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.