CAS 33133-45-8 appears in our catalog under these names: 1-Bromo-4-(prop-2-yn-1-yloxy)benzene, 95%, 4-Bromo-phenyl propargyl ether, 95-<97%, 1-bromo-4-(prop-2-yn-1-yloxy)benzene, 1-Bromo-4-(prop-2-yn-1-yloxy)benzene, 95%, 95%. Offered by: Combi-blocks, Hoffman Fine Chemicals, Biosynth, Chemat, Fluorochem. Available pack sizes: 5g, 1g, 250mg, 10g, 25g, 50g, 100g, 200g.