G2ZT is a bistetrazole. It is an explosive approximately as powerful as RDX, but releases biodegradable reaction products when detonated: ammonia and hydrogen cyanide. When combined with ADN or AN oxidizers, the amount of HCN produced by a deflagration may be reduced. The compound is thus considered by its advocates to be an environmentally friendlier explosive than traditional nitroamine-based explosives.
G2ZT is otherwise known as bis(3,4,5-triamino-1,2,4-triazolium) 5,5'-azotetrazolate.