Cc1ncc(C[n+]2csc(CCOC(=O)CC3C4CC5CC(C4)CC3C5)c2C)c(N)n1.Cl.[Cl-]
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?