Used as a source of vitamin K in animal feed to support blood clotting and bone health. Commonly added to poultry and livestock feed to prevent vitamin K deficiency. Also utilized in some pharmaceutical preparations for treating vitamin K deficiency in humans, particularly in newborns. Has been explored for its potential role in cancer research due to its ability to generate oxidative stress in tumor cells. Historically used as a dietary supplement, though its use in human nutrition has declined due to safety concerns. Employed in laboratory settings as a redox cycling agent to study oxidative stress mechanisms in cells.