pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.93	IUPAC digitized pKa	0	-1	O=c1[nH]c2ccccc2s1	O=c1[n-]c2ccccc2s1	mol10094	O=c1[nH]c2ccccc2s1