CC(=O)Nc1ccc(S(=O)(=O)O)c2c1C(=O)/C(=N\Nc1ccc(/N=N/c3ccc(S(=O)(=O)O)cc3)c3ccc(S(=O)(=O)O)cc13)C(S(=O)(=O)O)=C2
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.