CCCCn1c(N)c(N(CCOC)C(=O)c2ccc3c(c2)C(=O)N(c2cc(C)ccc2C)C3=O)c(=O)[nH]c1=O
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?