Cc1cccc(NC(=O)CN2C(=O)N/C(=C/c3cc(C)n(-c4ccncc4)c3C)C2=O)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?