CAS 2504-64-5 appears in our catalog under these names: 1,2–Bis(trichlorosilyl)ethane, 1,2-Bis(trichlorosilyl)ethane, 1,2-Bis(trichlorosilyl)ethane, >97.0%(T), BTSCE, AMST GRADE, SID# 101384253. Offered by: GLPBio, Thermo Scientific (Acros), TCI, Sigma-Aldrich. Available pack sizes: 25g, 5g, 355G.