pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.9	IUPAC digitized pKa	0	-1	Oc1c(N=Nc2ccccn2)ccc2cccnc12	[O-]c1c(N=Nc2ccccn2)ccc2cccnc12	mol11946	Oc1c(N=Nc2ccccn2)ccc2cccnc12