Cn1nnnc1SCC1=C(C(=O)[O-])N2C(=O)[C@@H](NC(=O)[C@@H](O)c3ccccc3)[C@@H]2SC1.[Na+]
A molecule with higher negative logP is hydrophilic, while a molecule with lower negative logP is lipophilic. What is the negative logP of this molecule?