CAS 54575-49-4 appears in our catalog under these names: Potassium tri-sec-butylborohydride, 1M solution in tetrahydrofuran, AcroSeal®, K-SELECTRIDE, 1.0M SOLUTION IN TETRAHYDR. Offered by: Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 100ML, 800ML.