pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.44	IUPAC digitized pKa	1	0	Cc1cn(C)c[nH+]c1=O	Cc1cn(C)cnc1=O	mol7333	Cc1cn(C)cnc1=O