Cc1c(C(=O)N2CCCCC2)c(S(=O)(=O)NCCc2ccccc2)c(C)n1C
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?