1-Methyl-3-(2-pyridyl)-5-chloroimidazo(4,5-b)pyridin-2-one 1H-Imidazo(4,5-b)pyridin-2(3H)-one, 5-chloro-1-methyl-3-(2-pyridyl)- 2H-Imidazo(4,5-b)pyridin-2-one, 1,3-dihydro-5-chloro-1-methyl-3-(2-pyridinyl)- 5-Chloro-1-methyl-3-(2-pyridyl)-1H-imidazo(4,5-b)pyridin-2(3H)-one 71008-58-7 BRN 5069022