CAS 9003-17-2 appears in our catalog under these names: Polybutadiene , Polybutadiene Standard (Mw 1,000) , Polybutadiene Standard (Mw 2,500) , Polybutadiene Standard (Mw 200,000) , Polybutadiene Standard (Mw 25,000) . Offered by: Hubei YoungXin, Sigma-Aldrich. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 200mg, 250ML, 100G, 100ML.