2-Iodo-4,7-dihydro-4-ethyl-7-oxo-thieno(3,2-b)pyridine-6-carboxylic acid 4,7-Dihydro-4-ethyl-2-iodo-7-oxothieno(3,2-b)pyridine-6-carboxylic acid 81975-10-2 Thieno(3,2-b)pyridine-6-carboxylic acid, 4,7-dihydro-4-ethyl-2-iodo-7-oxo-