pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.6	IUPAC digitized pKa	1	0	c1ccc2c(c1)C[NH2+]CCCN2	c1ccc2c(c1)CNCCCN2	mol7793	c1ccc2c(c1)CNCCCN2
3.6	IUPAC digitized pKa	2	1	c1ccc2c(c1)C[NH2+]CCC[NH2+]2	c1ccc2c(c1)C[NH2+]CCCN2	mol7793	c1ccc2c(c1)CNCCCN2