1-Ethenyl-2-pyrrolidinone homopolymer compound with iodine 25655-41-8 AIDS-000368 AIDS000368 Betadine Bridine Disphex Efo-Dine Iodopoly(vinyl pyrrolidinone) Isobetadyne Isodine NSC26245 PVP iodine PVP-I PVP-Iodine Povadyne Povidone iodine Povidone-Iodine Ultradine