Carbonyl diazide is a chemical compound with the chemical formula CO(N3)2.

In terms of its structure, it can be described as two azide groups −N3 covalently attached to the carbonyl group −C(=O)− by single bonds.

It can be prepared by way of the reaction between triphosgene and tetra-n-butylammonium azide, in a dimethyl or diethyl solution.

[1] The first synthesis of carbonyl diazide was reported in 1894, although there have been multiple alternative syntheses since then.

[2] This inorganic compound–related article is a stub.