2(1H)-pyrimidinone, 3,4-dihydro-4-thioxo- 4-thioxo-3,4-dihydropyrimidin-2(1H)-one InChI=1/C4H4N2OS/c7-4-5-2-1-3(8)6-4/h1-2H,(H2,5,6,7,8