pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.81	IUPAC digitized pKa	0	-1	S=c1nc[nH]c2nccnc12	S=c1nc[n-]c2nccnc12	mol9635	S=c1nc[nH]c2nccnc12
6.8099999	OCHEM	0	-1	S=c1nc[nH]c2nccnc12	S=c1nc[n-]c2nccnc12	mol9635	S=c1nc[nH]c2nccnc12
6.80999994277954	QSARToolbox	0	-1	S=c1nc[nH]c2nccnc12	S=c1nc[n-]c2nccnc12	mol9635	S=c1nc[nH]c2nccnc12