CAS 51581-54-5 appears in our catalog under these names: 1-(4-Chlorophenyl)imidazole, 96%, 1-(4-Chlorophenyl)imidazole, 95-<97%, 1-(4-Chlorophenyl)imidazole, ≥97-<99%, 1-(4-Chlorophenyl)-1H-imidazole, 97%, 97%, 1-(4-Chlorophenyl)imidazole, 97%. Offered by: Combi-blocks, Hoffman Fine Chemicals, Chemat, Fluorochem. Available pack sizes: 25g, 5g, 1g, 10g, 50g, 100g, 200g, 300g.