CC(C)CCNC(=O)C1CCN(S(=O)(=O)c2ccc3nc4c(c(C(=O)O)c3c2)CCCCC4)CC1
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?