CCc1cccc(C)c1NC(=O)Cn1c(=O)n(-c2cccc(C)c2)c(=O)c2c1c1cc(C)ccc1n2C
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?