CC(=O)C1=C(C)N(c2ccc(C)cc2)C2(O)C3=C(C(=O)c4ccccc4C3=O)C(O)=CC12Cl
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?