purity:1%-20% Name:Vitamin K1 Molecular Formula:C31H46O2 CAS:84-80-0... Vitamin K1 is used to prevent vitamin K1 deficiency, newborn ... prothrombinase II, VII, IX, X. The shortage of vitamin k1 can caused disorder or abnormal synthesis of prothrombinase. Clinically, ... .In recent years, reports said that High-dose vitamin K1 can promote liver cell viability, enhanced monocyte-macrophage phagocytosis, ...