CAS 70900-21-9 appears in our catalog under these names: Polysiloxanes, di-Me, hydrogen-terminated, average Mn ~24000, POLY(DIMETHYLSILOXANE), HYDRIDE TERMINA&, POLY(DIMETHYLSILOXANE), HYDRIDE TERM,, Hydride terminated polydimethylsiloxane cSt 7-10. Offered by: Chemat Brand, Sigma-Aldrich, Fluorochem. Available pack sizes: on request, 250ML, 50ML, 100ML, 100g.