CC(C)=CCN1CC[C@@]2(C)c3cc(O)ccc3CC1C2C.O=C(O)CCC(=O)O
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?