CAS 9050-97-9 appears in our catalog under these names: Amberlite? IRA–900, Amberlite|r IRA-900(Cl), ion exchange resin , Amberlite® IRA-900, Cl-form, ion-exchange resin, AMBERLITE IRA-900 ION-EXCHANGE RESIN, Amberlite IRA 900. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Sigma-Aldrich, Chemat. Available pack sizes: 500g, 1000g, 250g, 2.5KG, 100g, 1kg.