pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.0	IUPAC digitized pKa	1	0	CCNCC[NH+](CC)CCNCC,CCNCCN(CC)CC[NH2+]CC	CCNCCN(CC)CCNCC	mol5859	CCNCCN(CC)CCNCC
9.1	IUPAC digitized pKa	2	1	CC[NH2+]CCN(CC)CC[NH2+]CC	CCNCC[NH+](CC)CCNCC,CCNCCN(CC)CC[NH2+]CC	mol5859	CCNCCN(CC)CCNCC
2.64	IUPAC digitized pKa	3	2	CC[NH2+]CC[NH+](CC)CC[NH2+]CC	CC[NH2+]CCN(CC)CC[NH2+]CC	mol5859	CCNCCN(CC)CCNCC