175137-07-2

Methyl 4-amino-[2,3'-bithiophene]-5-carboxylate Methyl 3-amino-5-(thien-3-yl)thiophene-2-carboxylate methyl 3-amino-5-(thiophen-3-yl)thiophene-2-carboxylate [2,3'-Bithiophene]-5-carboxylic acid, 4-amino-, methyl ester