(- )-3 alpha-((6,11-Dihydrodibenzo (b,e)thiepin-11-yl)oxy)-6 beta, 7 beta-epoxy-8-methyl-1 alpha H, 5 alpha H-tropanium methanesulfonate 88199-75-1 Sevitropium mesilate Sevitropium mesilate [INN]