(1,1'-Biphenyl)-2-carboxylic acid, 4'-((2-cyclopropyl-7-methyl-3H-imidazo(4,5-b)pyridin-3-yl)methyl)- 135070-05-2 3-((2'-Carboxybiphenyl-4-yl)methyl)-2-cyclopropyl-7-methyl-3H-imidazo(4,5-b)pyridine E 4177 E-4177 E4177