CAS 25990-10-7 appears in our catalog under these names: Polygalacturonic Acid (Technical Grade), Polygalacturonic acid, Polygalacturonic acid, M.W. 25,000-50,000 , Polygalacturonic acid, 85.00%, POLYGALACTURONIC ACID, >=90% (ENZYMATIC). Offered by: TRC, GLPBio, Thermo Scientific (Alfa Aesar), Chemat, Sigma-Aldrich. Available pack sizes: 5g, 1g, 25g, 100g, 500g, 250G, 50G, 5 g.