73425-83-9 8-Ethyl-4-((methylamino)methyl)-2,3,4,9-tetrahydrothiopyrano(2,3-b)indole oxalate 8-Ethyl-N-methyl-2,3,4,9-tetrahydrothiopyrano(2,3-b)indole-4-methylamine oxalate Thiopyrano(2,3-b)indole, 2,3,4,9-tetrahydro-8-ethyl-4-((methylamino)methyl)-, oxalate Thiopyrano(2,3-b)indole-4-methylamine, 2,3,4,9-tetrahydro-8-ethyl-N-methyl-, oxalate