Cc1cc(C2=NN=C(NCCc3ccccc3)SC2)c(C)n1-c1c(C)n(C)n(-c2ccccc2)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?