1,3-Bis(piperidinomethyl)-2-oxoimidazo(4,5-b)pyridine oxalate 1,3-Dihydro-1,3-bis(1-piperidinylmethyl)-2H-imidazo(4,5-b)pyridin-2-one ethanedioate (1:1) 2H-Imidazo(4,5-b)pyridin-2-one, 1,3-dihydro-1,3-bis(1-piperidinylmethyl)-, ethanedioate (1:1) 85930-02-5