CC(=O)C1=C(c2ccc(C)c(C)c2)N(C(C)=O)n2c(nnc2-c2ccc(Cl)cc2)S1
Molecules with a polar surface area of greater than 140 angstroms squared (Å2) tend to be poor at permeating cell membranes. What's the psa of this molecule?