Cc1cc(NC(=O)c2cn(C3CCCCC3)c(=O)c3c2c2ccccc2n3C)no1
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?