CAS 25249-54-1 appears in our catalog under these names: Poly[1-(2-oxo-1-pyrrolidinyl)-1,2-ethanediyl] ~110 μm（contains 2.3% H2O）, Polyvinylpyrrolidone, Polyvinylpyrrolidone, cross linked , Polyvinylpyrrolidone, cross-linked. Offered by: Ambeed, GLPBio, Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros). Available pack sizes: 25g, 100g, 1000g, 500g, 1KG.