3,5-Diiodochelidamic acid

4-Hydroxy-3,5-diiodopyridine-2,6-dicarboxylic acid

1,4-Dihydro-3,5-diiodo-4-oxo-2,6-pyridinedicarboxylic acid

1,4-dihydro-3,5-diiodo-4-oxopyridine-2,6-dicarboxylic acid