1H-Benzo(de)quinoline, 2,3-dihydro-5,6-dimethoxy-1-methyl-, hydrochloride 2,3-Dihydro-5,6-dimethoxy-1-methyl-1H-benzo(de)chinolin-hydrochlorid [German] 41829-05-4 5,6-Dimethoxy-1-methyl-2,3-dihydro-1H-benzo(de)quinoline hydrochloride