CCCCCCCCCCCCCCCCCCNc1ccn(C2OC(COP(=O)(O)OCCCCCCCCCCCCCCCC)C(O)C2O)c(=O)n1
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?