CCOC(=O)NC(=O)c1cn(CCSCCOC(=O)NCCCCCCNC(=O)OCCSCCn2cc(C(=O)NC(=O)OCC)c(=O)n(C)c2=O)c(=O)n(C)c1=O
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?