pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.2	IUPAC digitized pKa	0	-1	CCCC(=O)OP(=O)(O)O	CCCC(=O)OP(=O)([O-])O	mol9241	CCCC(=O)OP(=O)(O)O
5.1	IUPAC digitized pKa	-1	-2	CCCC(=O)OP(=O)([O-])O	CCCC(=O)OP(=O)([O-])[O-]	mol9241	CCCC(=O)OP(=O)(O)O