2-Dimethylaminoethylazide

2-Dimethylaminoethylazide (DMAZ) is a liquid rocket fuel being investigated for use as a spacecraft propellent to replace the toxic, carcinogenic monomethylhydrazine.

[1] It is a member of the competitive impulse non-carcinogenic hypergol (CINCH) family which were assessed as a replacement for hydrazine-derived propellants.

[2][3] DMAZ was also found to be sensitive to impact, direct flame, shock wave, heat in confined space, and electrostatic discharge.

[4] DMAZ is an organic azide, which is prepared by reacting the chloride of the corresponding alkyl-amine (in this case dimethyl ethylamine) with sodium azide:[1] Ideally, the complete combustion of DMAZ produces carbon dioxide, water, and nitrogen: During their inquiry into finding alternative hypergolic fuel, a joint effort by the Aviation and Missile Research, Development, and Engineering Center (AMRDEC), the U.S. Army Research Laboratory (ARL), and the National Aeronautics and Space Administration (NASA) determined that DMAZ could perform competitively with Aerozine-50 and is less toxic than hydrazine-based fuels.

In an effort to address this issue, researchers synthesized the related compounds 2-azidoethanamines – 2-azido-N-methylethanamine (MMAZ) and 2-azido-N-cyclopropylethanamine (CPAZ) in hopes of enhancing the reactivity of DMAZ's amine nitrogen to reduce ignition delays.