pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.12	IUPAC digitized pKa	0	-1	Cc1ncnc2[nH]nnc12	Cc1ncnc2[n-]nnc12	mol8361	Cc1ncnc2[nH]nnc12