ChEBI: 4-hydroxy-6-(pyridin-3-yl)-2H-pyran-2-one is a member of the class of 2-pyranones that is 2H-pyran-2-one which has been substituted at positions 4 and 6 by hydroxy and pyridin-3-yl groups, respectively. It is a member of 2-pyranones and a member of pyridines. It is a conjugate acid of a 2-oxo-6-(pyridin-3-yl)-2H-pyran-4-olate.