pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.58	IUPAC digitized pKa	0	-1	CCCP(O)(=S)CCC	""	mol9925	CCCP(O)(=S)CCC
2.83	OCHEM	0	-1	CCCP(O)(=S)CCC	""	mol9925	CCCP(O)(=S)CCC