CAS 38363-40-5 appears in our catalog under these names: (S)-Penbutolol, (S)-Penbutolol 100 µg/mL in Acetonitrile, Penbutolol, (-)-Penbutolol, 99.74%. Offered by: Dr. Ehrenstorfer, TargetMol, MedChemExpress. Available pack sizes: 10mg, 1ml, 25mg, 50mg, 100mg, 10 mg, 25 mg, 5 mg.