英文别名Pioglitazone Impurity 4; Pioglitazone EP Impurity D; ethyl 2-carbamoylsulfanyl-3-[4-[2-(5-ethylpyridin-2-yl)ethoxy]phenyl]propanoate; Ethyl 2-(carbamoylsulfanyl)-3-{4-[2-(5-ethyl-2-pyridinyl)ethoxy]phenyl}propanoate; α-[(Aminocarbonyl)thio]-4-[2-(5-ethyl-2-pyridinyl)ethoxy]benzenepropanoic Acid Ethyl Ester; Pioglitazone Impurity D 
