CCCN(C(=O)Cn1cc(S(=O)(=O)N2CCN(c3ccccc3F)CC2)c2ccccc2c1=O)c1cccc(C)c1
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?