CAS 61128-46-9 appears in our catalog under these names: 4,4'-(4,4'-Isopropylidenediphenoxy)bisphthalic anhydride-m-phenylenediamine copolymer, Polyetherimide, melt index 18g/10 min (337 °C/6.6kg), Polyetherimde, 4,4'-(4,4'-Isopropylidenediphenoxy)bisphthalic anhydride-m-phenylenediamine copolymer, melt index: 9 g/10 min. Offered by: Chemat, Ambeed, BLDpharm, Sigma-Aldrich. Available pack sizes: 10g, 1g, 5g, 25g, 100g, 500g, 1KG, 250G.