1,2,4,5-Tetrahydro-11-methyl-3H-azepino(4,5-b)quinoline-6-N-oxide dihydrochloride 1H-Azepino(4,5-b)quinoline, 2,3,4,5-tetrahydro-11-methyl-, 6-oxide, dihydrochloride 56516-38-2