[H]C12Oc3c(O)ccc4c3C13CCN(CC=C)C([H])(C4)C3(O)CCC2=O
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?