C/C(=N/NC(=O)c1ccccc1S(N)(=O)=O)C(CN1CCCCC1)C(C1=C(O)C2C=CC=CC2OC1=O)c1ccccc1.Cl
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?