4-oxobenzothiopheno[2,3-e]pyran-2-carboxylic acid is a chemical compound registered under CAS number 40040-62-8, with the molecular formula C12H6O4S and a molecular weight of about 246.23 g/mol. ChemIBD supplies 4-oxobenzothiopheno[2,3-e]pyran-2-carboxylic acid for laboratory research and bulk production; product code 1833185. Send an inquiry for purity, packaging, price and lead time.