Nc1ccn(C2CC(O)C(COP(=O)(S)OC3CC(n4ccc(N)nc4=O)OC3CO)O2)c(=O)n1
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?