PVP series: PVP Homopolymers(PVP K12, K15,K17,K25,K30,K90,K120 in both powder and liquid form) VP/VA Copolymers(PVP/VA64 powder, VA64W/E/I, 73W/E/I, 37E) Povidone Iodine PVPP(Crospovidone) PVM/MA Copolymers Material: 2-Pyrrolidone, N-vinyl pyrrolidone(NVP) N-Cyclohexyl-2-pyrrolidone (CAS NO.6837-24-7) V-Vinylcaprolactam Copolymer (VCap) CAS NO.2235-00-9 Vinylpyrrololidone (VP) / Vinylcaprolactam Copolymer (VCap) CAS No.: 51987-20-3