Cn1c(C(=O)NCCCN2CCN(c3ccccc3F)CC2)cc2c(O)nc3ccccc3c21
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?