18833-65-3 6H-CYCLOHEPTA(b)QUINOLINE, 11-(3-(DIMETHYLAMINO)PROPOXY)-7,8,9,10-TETRAHYDRO-2,3 6H-Cyclohepta(b)quinoline, 11-(3-(dimethylamino)propoxy)-7,8,9,10-tetrahydro-2,3,4-trimethoxy-, dihydrochloride