pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.99	IUPAC digitized pKa	1	0	CC(=O)NCCc1[nH+]c(I)[nH]c1I	CC(=O)NCCc1nc(I)[nH]c1I	mol6628	CC(=O)NCCc1nc(I)[nH]c1I