Synonyms:
3,4-dihydro-4-oxothieno[2,3-d]pyrimidine ; thieno[2,3-d]pyrimidin-4(3h)-one ; ieno[2,3-d]pyrimidin-4(3h)one ; 4-hydroxythieno[2,3-d]pyrimidine, thieno[2,3-d]pyrimidin-4(1h)-one ; thieno[2,3-d]pyrimidin-4-ol ; 3h-thieno[2,3-d]pyrimidine-4-one ; 3h-thieno[2,3-d]pyrimidine-4-one