Cc1ccc(C)c(CN2C(=O)C(O)(c3c(C)[nH]c4ccccc34)c3ccccc32)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?