The molecule is a bipyridine that is 3,3'-bipyridine bearing six hydroxy groups at positions 2, 2', 5, 5', 6 and 6'. It derives from a 2,3,6-trihydroxypyridine.
5-(2,5-dihydroxy-6-oxo-1H-pyridin-3-yl)-3,6-dihydroxy-1H-pyridin-2-one