[H]C12SCC(COC(C)=O)=C(C(=O)O)N1C(=O)C2NC(=O)C(=NOC)c1csc(N)n1
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?