1,5-Dihydro-5-butyl-1-propyl-4H-imidazo(4,5-c)quinolin-4-one monohydrochloride 133306-08-8 4H-Imidazo(4,5-c)quinolin-4-one, 1,5-dihydro-5-butyl-1-propyl-, monohydrochloride