Sumatriptan Impurity - E

3-(2-Aminoethyl)-N-methyl-1H-indole-5-methanesulfonamide; Didesmethyl Sumatriptan; [3-(2-Aminoethyl)-1H-indol-5-yl]-N-methylmethanesulfonamide; Sumatriptan Amino (USP) Impurity;