CCCCn1c(N)c(N(CCOC)C(=O)c2ccc3c(c2)C(=O)N(c2cc(C)ccc2C)C3=O)c(=O)[nH]c1=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?