CAS 26098-55-5 appears in our catalog under these names: Dodecanedioic acid-hexamethylenediamine copolymer, Nylon 6/12, Dodecanedioic acid-hexamethylenediamine copolymer, pellets,particle size:2 mm. Offered by: Chemat, Sigma-Aldrich. Available pack sizes: 100g, 250G, 25g, 50g, 1kg.