Dinitroglycoluril (DNGU) is a high explosive[1] chemical compound with the formula C4H4N6O6.

Dinitroglycoluril is of growing interest due to its stability, ability to mix with oxygen positive explosives to form composites, and it is a precursor to tetranitroglycoluril.

[2] Dinitroglycoluril can be created by nitrating glycoluril with concentrated nitric acid.

[2] When dinitroglycoluril is heated to 243 °C in an inert atmosphere, the two nitrate groups break off and the two central carbon atoms form a double bond.

[1] The impact sensitivity of dinitroglycoluril was determined using the Bruceton-staircase procedure, which found a h50 of 88 cm.