EPY0000161
Ketotifen impurity G - 4-(1-methylpiperidin-4-ylidene)-4H-benzo(4,5)cyclohepta(1,2-b)thiophen-9,10-dione
Ketotifen impurity G - 4-(1-methylpiperidin-4-ylidene)-4H-benzo(4,5)cyclohepta(1,2-b)thiophen-9,10-dione
Labetalol impurity A - 2-Hydroxy-5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl)-amino]ethyl]benzoic acid