pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.96	IUPAC digitized pKa	1	0	c1c[nH+]c2c(c1)NCCC2,c1cnc2c(c1)[NH2+]CCC2	c1cnc2c(c1)NCCC2	mol7823	c1cnc2c(c1)NCCC2
-1.35	IUPAC digitized pKa	2	1	c1c[nH+]c2c(c1)[NH2+]CCC2	c1c[nH+]c2c(c1)NCCC2,c1cnc2c(c1)[NH2+]CCC2	mol7823	c1cnc2c(c1)NCCC2