CAS 3440-99-1 appears in our catalog under these names: 5-(3-Bromo-phenyl)-2h-tetrazole, 98%, 5-(3-Bromophenyl)-1H-tetrazole, 98%, 5-(3-Bromophenyl)-2H-tetrazole, 5-(3-Bromophenyl)-1H-tetrazole 98%. Offered by: Combi-blocks, Biosynth, Ambeed, Fluorochem. Available pack sizes: 1g, 5g, 25g, 50g, 10g, 2.5g.