Quinoxalinedione is an organic compound with the formula C6H4(NH)2(CO)2.

It is a colorless solid that is soluble in polar organic solvents.

Quinoxalinediones are a family of related compounds sharing the same bicyclic core.

[1] Quinoxalinedione is produced by condensation of dimethyloxalate and o-phenylenediamine: The compound exists in solution and the solid state predominantly as the diamide form.

[3][4][5][6] Examples include the following: A drug closely related to the quinoxalinediones, but possessing a quinazoline-2,4-dione structure instead, is selurampanel.