VK1 CAS 84-80-0 Vitamin K1

Vitamin K1, also known as phytomenadione, phytyl menadione, phylloquinone, and its chemical name is 2-methyl-3-phytyl-1,4-naphthoquinone, which is a polycyclic aromatic ketone. It is a fat-soluble vitamin, stable to air and humidity, but will be decomposed in the sun. Exist widely in natural green plants.