Cc1cc2c(cc1-c1cc3c(cc1C)C(C(C)C)=C(O)C(=O)/C3=C\NCC1CCCN3CCCCC13)/C(=C/NCC1CCCN3CCCCC13)C(=O)C(O)=C2C(C)C
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?