132605-28-8 2,3-Dihydro-3-ethyl-5-phenyl-2-thioxothieno(2,3-d)pyrimidin-4(1H)-one BRN 4194014 Thieno(2,3-d)pyrimidin-4(1H)-one, 2,3-dihydro-3-ethyl-5-phenyl-2-thioxo-