CCCCCCn1nc(C(=O)N(CCOC)c2c(N)n(CCCC)c(=O)[nH]c2=O)c2ccccc2c1=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?