CAS 102783-03-9 appears in our catalog under these names: (Mercaptopropyl)Methylsiloxane-diMethylsiloxane copolyMers, (Mercaptopropyl)methylsiloxane-dimethylsiloxane copolymers cSt 120-180, (13-17% (Mercaptopropyl)methylsiloxane) - Dimethylsiloxane copolymer, 100-200 cSt. Offered by: Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 100g.