pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.19	IUPAC digitized pKa	1	0	Cc1n[nH]c([NH3+])nc1=O,Cc1n[nH]c(N)[nH+]c1=O,Cc1[nH+][nH]c(N)nc1=O	Cc1n[nH]c(N)nc1=O	mol9181	Cc1n[nH]c(N)nc1=O