COCCNC(=O)CCCn1c(=O)c2cc(OC)c(OC)cc2n(CC(=O)Nc2ccc(F)cc2)c1=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?