CAS 99904-16-2 is the registry number for Siloxanes and Silicones, di-Me, 3-aminopropyl group-terminated, polymers with [5,5′-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[1,3-isobenzofurandione and m-phenylenediamine, 95%. Offered by: Chemat. Available pack sizes: 25g, 50g, 100g.