1-Methyl-2a-(3-dimethylaminopropyl)-2a,3,4,5-tetrahydrobenz(c,d)indol-2(1H)-one fumarate 2a,3,4,5-Tetrahydro-2a-(3-(dimethylamino)propyl)-1-methylbenz(cd)indol-2(1H)-one fumarate Benz(cd)indol-2(1H)-one, 2a,3,4,5-tetrahydro-2a-(3-(dimethylamino)propyl)-1-methyl-, fumarate DE3205000