CC/C(=N\CCc1c(C)[nH]c2ccc(C)cc12)C1=C(O)CC(c2ccccc2)CC1=O
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?