pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
0.74	IUPAC digitized pKa	0	-1	O=P(O)(Oc1ccc2ccccc2c1)Oc1ccc2ccccc2c1	O=P([O-])(Oc1ccc2ccccc2c1)Oc1ccc2ccccc2c1	mol1734	O=P(O)(Oc1ccc2ccccc2c1)Oc1ccc2ccccc2c1