pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.64	IUPAC digitized pKa	1	0	[NH3+]c1nc2ccccc2c2c1ccc1ccccc12,Nc1[nH+]c2ccccc2c2c1ccc1ccccc12	Nc1nc2ccccc2c2c1ccc1ccccc12	mol8425	Nc1nc2ccccc2c2c1ccc1ccccc12