1-Methyl-3-(2-pyrazinyl)-1H-imidazo(4,5-c)pyridin-2(3H)-one 1H-Imidazo(4,5-c)pyridin-2(3H)-one, 1-methyl-3-(2-pyrazinyl)- 2H-Imidazo(4,5-c)pyridin-2-one, 1,3-dihydro-1-methyl-3-(2-pyrazinyl)- 89660-35-5 BRN 5053593