Cc1ccc(N/C(N)=N/c2nc(CSc3nnc(N)s3)cc(=O)[nH]2)cc1
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?