CCOC(=O)c1c(C)oc2c1c(C(c1ccccc1)N1CCOCC1)c(O)c1ccccc12
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?