Provectus Biopharmaceuticals Inc is a clinical-stage biotechnology company developing immunotherapy medicines for different diseases that are based on a class of synthetic small molecule immuno-catalysts called halogenated xanthenes (HXs). Its lead HX molecule is named rose bengal sodium. The Company’s proprietary, patented, pharmaceutical-grade RBS is the active pharmaceutical ingredient in the drug product candidates of its current clinical development programs and the preclinical formulations of its current drug discovery programs.