pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.75	Datawarrior	-1	-2	O=C1C=C(S(=O)(=O)[O-])c2[nH]ncc2C1=NO	O=C1C=C(S(=O)(=O)[O-])c2[nH]ncc2C1=N[O-],O=C1C=C(S(=O)(=O)[O-])c2[n-]ncc2C1=NO	mol14604	O=C1C=C(S(=O)(=O)O)c2[nH]ncc2C1=NO