pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.15	IUPAC digitized pKa	1	0	Cn1c[nH+]c(=N)c2ccccc21,Cn1cnc(=[NH2+])c2ccccc21	Cn1cnc(=N)c2ccccc21	mol7894	Cn1cnc(=N)c2ccccc21