The molecule is an extended quinone obtained by formal autoxidation of 2,3,6-trihydroxypyridine. It has a role as a biological pigment. It derives from a 2,3,6-trihydroxypyridine. It is a conjugate acid of a nicotine blue(2-).
5-(2,5-dihydroxy-6-oxo-1H-pyridin-3-yl)pyridine-2,3,6-trione