Chemical name of Vitamin-K is

The chemical name of Vitamin-K is Phylloquinone. Chemically, the vitamin K family comprises 2-methyl-1 and 4-naphthoquinone derivatives. Vitamin K includes two natural vitamers: vitamin K₁ (phylloquinone) and vitamin K₂ (menaquinone).
Vitamin K refers to structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements.
The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation or for controlling the binding of calcium in bones and other tissues.