1,5,6,7,8,9-Hexahydro-4H-cyclohepta(4,5)thieno(2,3-d)pyrimidin-4-one 40106-31-8 4H-Cyclohepta(4,5)thieno(2,3-d)pyrimidin-4-one, 1,5,6,7,8,9-hexahydro- BRN 0526629