CAS 8050-09-7 appears in our catalog under these names: Gum Rosin, Rosin , Rosin, gum, COLOPHONY, Rosin. Offered by: TRC, Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Chemat, Sigma-Aldrich. Available pack sizes: 100g, 10g, 25g, 250g, 1kg, 2.5KG, 500g, 5kg.