O=C(O)c1cc(N=Nc2ccc(S(=O)(=O)Nc3ccccn3)cc2)ccc1O
DRUGMATRIX assay inhibits PDE5 enzyme (substrate: [3H]cGMP + cGMP) and targets a single protein. It uses human platelet cells and is an in vitro binding assay. Does the molecule work for this assay?