CCOC(=O)C1CCCN(C(=O)c2ccc3c(c2)N(Cc2ccccc2)C(=O)c2ccccc2[S+]3[O-])C1
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?