O=C(NCCC1=CCCCC1)c1ccc2c(c1)N(Cc1ccc(Cl)cc1)C(=O)c1ccccc1S2(=O)=O
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?