pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.61	IUPAC digitized pKa	1	0	c1c[nH+]c2c(c1)CCCN2,c1cnc2c(c1)CCC[NH2+]2	c1cnc2c(c1)CCCN2	mol7831	c1cnc2c(c1)CCCN2