MOLECULE

1,1-Dimethyl-hydrazine

1,1-dimethylhydrazine is a chemical compound, also known as dimazine, belongs to the class of organic compounds known as alkylhydrazines. These are organonitrogen compounds that containing a hydrazine group to which an alkyl group is attached. It is a colorless liquid, with a sharp, fishy, ammonia-like smell, typical for organic amines. 1,1-dimethylhydrazine is a very strong basic compound (based on its pKa). It is miscible with water, ethanol, and kerosene. In concentration between 2.5% and 95% in the air, its vapors are flammable. Symmetrical dimethylhydrazine, 1,2-dimethylhydrazine is also known but is not as useful. 1,1-dimethylhydrazine is a dimethylated derivative of hydrazine and sometimes referred to as a hydrazine. Hydrazine is an inorganic chemical compound with an ammonia-like odor and is derived from the same industrial chemistry processes that manufactures ammonia. Direct alkylation of hydrazines with alkyl halides in the presence of a base affords alkyl-substituted hydrazines, but the reaction is typically inefficient due to poor control on the level of substitution (same as in ordinary amines). The reduction of hydrazones to hydrazines is a clean way to produce 1,1-dialkylated hydrazines. Hydrazines and its methyl derivatives are toxic but LD50 values have not been reported. 1,1-dimethylhydrazine is often used in hypergolic rocket fuels. 1,1-dimethyl-hydrazine has also been identified as a volatile component of Cannabis sativa samples (PMID: 26657499).