pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.78	IUPAC digitized pKa	1	0	c1ccc(C(C2=[NH+]CCN2)c2ccccc2)cc1	c1ccc(C(C2=NCCN2)c2ccccc2)cc1	mol3930	c1ccc(C(C2=NCCN2)c2ccccc2)cc1