1-(3-Dimethylaminopropyl)-1-methyl-1,3,4,9-tetrahydropyrano(3,4-b)indole oxalate 57790-93-9 Pyrano(3,4-b)indole, 1,3,4,9-tetrahydro-1-(3-(dimethylamino)propyl)-1-methyl-, oxalate