The molecule is a monochloropyridine that is 2,5-dioxo-2,5-dihydropyridine which is substituted at positions 3 and 6 by a hydroxy group and a chlorine, respectively. It is an enol, a monohydroxypyridine, a monochloropyridine and a pyridone. It is a conjugate acid of a 6-chloro-2,5-dioxo-2,5-dihydropyridin-3-olate.
6-chloro-5-hydroxypyridine-2,3-dione