Sumatriptan Dimer Impurity; 3- [2- (dimethylamino) ethyl] - 1- [[3- [2- (dimethylamino) ethyl] - 1H- indol- 5- yl] methyl] - N- methyl 1H- Indole- 5- methanesulfonamide
Sumatriptan Dimer Impurity; 3- [2- (dimethylamino) ethyl] - 1- [[3- [2- (dimethylamino) ethyl] - 1H- indol- 5- yl] methyl] - N- methyl 1H- Indole- 5- methanesulfonamide