CCN(CC)C(=O)CSc1nc2cc3c(cc2c(=O)n1CCCCCC(=O)NCCc1ccc(OC)c(OC)c1)OCO3
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?