Chemical Name: 5-{4-[2-(5-Ethyl-2-pyridinyl) ethoxy] benzylidene}-2,4-thiazolidinedione ;
Synonym: Didehydro Pioglitazone Impurity
Smiles: O=C(NC/1=O)SC1=C/C2=CC=C(OCCC3=NC=C(CC)C=C3)C=C2
Inchi: InChI=1/C19H20N2O4S/c1-2-13-3-6-15(20-12-13)9-10-25-16-7-4-14(5-8-16)11-19(24)17(22)21-18(23)26-19/h3-8,12,24H,2,9-11H2,1H3,(H,21,22,23)