O=c1[nH]nc(Cc2ccc(Cl)cc2)n1/N=C\c1ccc(/C=N/n2c(Cc3ccc(Cl)cc3)n[nH]c2=O)cc1
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.