43088-64-8

5-Methylthieno[2,3-d]pyrimidin-4(3H) 3-METHYLTHIENO(2,3-D)PYRIMIDIN-4(5H)-ONE 5-Methylthieno[2,3-d]pyrimidin-4(3H)-one 5-Methyl-3H-thieno[2,3-d]pyrimidin-4-one Thieno[2,3-d]pyrimidin-4(1H)-one, 5-methyl- 5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One