pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.63	IUPAC digitized pKa	1	0	c1ccc2c(c1)C[NH2+]CN2	c1ccc2c(c1)CNCN2	mol4651	c1ccc2c(c1)CNCN2