英文别名4-[2-(5-Ethyl-2-Pyridyl)Ethoxy]-Benzaldehyde; 4-[2-(5-ethyl-pyridin-2-yl)-ethoxy]-benzaldehyde; 4-[2-(5-ETHYL-2-PYRIDINYL)ETHOXY]BENZYALDEHYDE; Pioglitazone Impurity 1; Pioglitazone Impurity 7; 4-hydroxybenzaldehyde 5-ethylpyridine-2-ethylether; Pioglitazone Aldehyde Impurity 
