CAS 82138-56-5 appears in our catalog under these names: 3-(5-Chloro-1H-benzimidazol-2-yl)propanoic acid, 95%, 3-(6-Chloro-1H-benzo(d)imidazol-2-yl)propanoic acid, 95+%. Offered by: Combi-blocks, AmBeed, Chemat. Available pack sizes: 250mg, 10g, 5g, 1g, 100mg.