pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.93	IUPAC digitized pKa	0	-1	Oc1ncnc2ncc(CNc3ccccc3)nc12	[O-]c1ncnc2ncc(CNc3ccccc3)nc12	mol4743	Oc1ncnc2ncc(CNc3ccccc3)nc12