Glimepiride EP Impurity - B

4-[2-[(3-Ethyl-4-methyl-2-oxo-3-pyrrolin-1-yl)carboxamido]ethyl]benzenesulfonamide; Des[(trans-4-methylcyclohexyl)amino]carbonyl Glimepiride; N-[2-[4-(Aminosulfonyl)phenyl]ethyl]-3-ethyl-2,5-dihydro-4-methyl -2-oxo-1H-pyrrole-1-carboxamide; Glimepiride sulfonamide, 3-Ethyl-4-methyl-2-oxo-N-(4-sulfamoylphenethyl)-2,5-dihydro-1H -pyrrole-1-carboxamide, Glimepiride Related Compound B (USP);