O=C1C=CC(S(=O)(=O)C2=C/C(=C/Nc3ccc(Cl)cc3)C(=O)C=C2)=C/C1=C/Nc1ccc(Cl)cc1
A negative logP value indicates preferential solubility in water and a positive value indicates an affinity for octanol. What is the negative logP of this molecule?