CAS 1418133-29-5 appears in our catalog under these names: 2,2'-(2-Propyl-1-((2'-(1-trityl-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-1H-imidazole-4,5-diyl)bis(propan-2-ol), 95%, Olmesartan Impurity 51. Offered by: Chemat Brand, Hubei YoungXin. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg.