1343457-55-5

PM209-3 2,2′-Thieno[3,2-b]thiophene-2,5-diylbis-3-thiophenecarboxylic acid diethyl 2,2'-(thieno[3,2-b]thiophene-2,5-diyl)bis(thiophene-3-carboxylate) Diethyl 2，2'-(thieno[3，2-b]thiophene-2，5-diyl)bis(thiophene-3-carboxylate) 3-Thiophenecarboxylic acid, 2,2'-thieno[3,2-b]thiophene-2,5-diylbis-, 3,3'-diethyl ester