Synonyms: 5-methyl-4-oxo-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid; 34330-04-6; SBB042950; STL079625; AKOS000122563; AKOS000269285; MCULE-1716467802; NE29248; ST50108678; EN300-04536; SR-01000013791; SR-01000013791-1; 2-Mercapto-5-methyl-4-oxo-3,4-dihydro-thieno[2,3-d]pyrimidine-6-carboxylic acid; F1634-0015; 5-methyl-4-oxo-2-sulfanylidene-1H-thieno[2,3-d]pyrimidine-6-carboxylic acid; CID2387218; 9-methyl-2-oxo-4-sulfanylidene-7-thia-3,5-diazabicyclo[4.3.0]nona-8,10-diene-8-carboxylic Acid; 5-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-6-carboxylic acid; 5-methyl-4-oxo-2-thioxo-1,3-dihydrothiopheno[2,3-d]pyrimidine-6-carboxylic aci d; AC1M5XF1; AC1Q2GJ5; CTK7J1393; HMS1653F22; ZINC3947335;