CC(C)(C)OC(=O)N1Cc2ccccc2C[C@H]1C(=O)NCC(=O)Nc1ccc2c(c1)OCCO2
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?