pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.5	IUPAC digitized pKa	1	0	COc1ccc(NC(N)=[NH2+])cc1	COc1ccc(NC(=N)N)cc1	mol6200	COc1ccc(NC(=N)N)cc1