Glimepiride EP Impurity - C

[[4-[2-[[(3-Ethyl-2,5-dihydro-4-methyl-2-oxo-1H-pyrrol-1-yl)carbonyl]amino]ethyl]phenyl]sulfonyl]carbamic Acid Methyl Ester;1-[[p-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido)ethyl]phenyl]sulfonyl]-methoxy carbamate; Glimepiride urethane, Methyl ({4-[2-(3-ethyl-4-methyl-2-oxo-2,5-dihydro-1H -pyrrole-1-carboxamido)ethyl]phenyl}sulfonyl)carbamate, Glimepiride Related Compound C (USP);