Cc1ccc(S(=O)(=O)N/N=C(/CC(=O)c2c(C)[n+]([O-])c3ccccc3[n+]2[O-])C(=O)Nc2ccc(C)c(C)c2)cc1
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?