pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.6	IUPAC digitized pKa	0	-1	CC1=NOC(=O)C1=NNc1cccc(Cl)c1	CC1=NOC(=O)C1=N[N-]c1cccc(Cl)c1	mol11451	CC1=NOC(=O)C1=NNc1cccc(Cl)c1