CC(=O)OC1C(N2CCCCC2)c2c(ccc(/C=C/C(=O)N3CCCCC3)c2O)OC1(C)C
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?