pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.0	IUPAC digitized pKa	1	0	Cn1c(Cl)nc2c[nH+]cnc21,Cn1c(Cl)[nH+]c2cncnc21,Cn1c(Cl)nc2cnc[nH+]c21	Cn1c(Cl)nc2cncnc21	mol8280	Cn1c(Cl)nc2cncnc21