pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.61999988555908	QSARToolbox	0	-1	C=C(C)CCOP(=O)(O)O	C=C(C)CCOP(=O)([O-])O	mol34282	C=C(C)CCOP(=O)(O)O