2-((5,6-Dimethyl-4-oxo-3-phenyl-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid 1g

2-((5,6-Dimethyl-4-oxo-3-phenyl-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid 1g