73426-19-4 9-Benzoyl-4-((methylamino)methyl)-2,3,4,9-tetrahydrothiopyrano(2,3-b)indole oxalate 9-Benzoyl-N-methyl-2,3,4,9-tetrahydrothiopyrano(2,3-b)indole-4-methylamine oxalate Thiopyrano(2,3-b)indole, 2,3,4,9-tetrahydro-9-benzoyl-4-((methylamino)methyl)-, oxalate Thiopyrano(2,3-b)indole-4-methylamine, 2,3,4,9-tetrahydro-9-benzoyl-N-methyl-, oxalate