CAS 9002-89-5 appears in our catalog under these names: Polyvinyl alcohol, 86-89% hydrolyzed, low molecular weight , Polyvinyl alcohol, 86-89% hydrolyzed, medium molecular weigh, Polyvinyl alcohol, 87-89% hydrolyzed, high molecular weight , Polyvinyl alcohol, 98-99% hydrolyzed, low molecular weight , Polyvinyl alcohol, 98-99% hydrolyzed, medium molecular weigh. Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 500g.