Cc1cccc(NC(=O)/C(C#N)=C\c2cc(C)n(-c3ccc(C(=O)O)cc3)c2C)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?