CAS 139742-50-0 appears in our catalog under these names: 4-(1H-Benzimidazol-1-ylmethyl)benzoic acid, 95%, 4-((1H-Benzimidazol-1-yl)methyl)benzoic acid, 4-(1H-Benzimidazol-1-ylmethyl)benzoic acid, 97% . Offered by: Combi-blocks, Biosynth, Thermo Scientific. Available pack sizes: 1g, 5g, 10g.