Azilsartan Impurity R Catalogue A195638 CAS 1604812-35-2 M.W C35H28N4O11 M.F 680.63 Specifications FAQs diethyl- 2-propyl-1-((2'-(1-trityl-1H-tetrazol-5-yl)- [1,1'-biphenyl]-4-yl)methyl)-1H-imidazole-4,5-dicarboxylate
