CN1CCc2cccc3c2[C@@H]1Cc1ccc(O)c(O)c1-3.CN1CCc2cccc3c2[C@@H]1Cc1ccc(O)c(O)c1-3.Cl.Cl.O
PSA is a commonly used medicinal chemistry metric for the optimization of a drug's ability to permeate cells. Please predict psa of this molecule.