pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.825	AttenGpKa training set	0	-1	OP(O)O	""	mol21880	OP(O)O
6.58	AttenGpKa training set	-1	-2	""	""	mol21880	OP(O)O