CAS 147441-56-3 appears in our catalog under these names: Tramadol N-Oxide, Tramadol N-Oxide (1.0mg/ml in Acetonitrile), Tramadol N-Oxide, >95% (HPLC). Offered by: Chemat Brand, TRC, Mikromol, LoGiCal, MedChemExpress. Available pack sizes: on request, 10x1ml, 100mg, 10mg, 4x25mg, 25mg, Get quote.