CAS 54223-20-0 appears in our catalog under these names: 1-(1,3-Benzothiazol-2-yl)-2-bromo-1-ethanone, 95%, 1-(1,3-Benzothiazol-2-yl)-2-bromo-1-ethanone, 90% . Offered by: Combi-blocks, Thermo Scientific, Fluorochem. Available pack sizes: 250mg, 1g, 10g, 100mg.