Methylhydrazines are

hydrazine Hydrazine is an inorganic compound with the chemical formula . It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour. Hydrazine is highly toxic unless handled in solution as, for example, hydrazine ...

s that have additional

methyl In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula . In formulas, the group is often abbreviated as Me. This hydrocarbon group occurs in many ...

groups. Heavily methylated versions exist as

hydrazinium Hydrazinium is the cation with the formula . This cation has a methylamine-like structure (). It can be derived from hydrazine by protonation (treatment with a strong acid). Hydrazinium is a weak acid with p''K''a = 8.1. Salts of hydrazinium ar ...

salts. Members of this class include: *

Monomethylhydrazine Monomethylhydrazine (mono-methyl hydrazine, MMH) is a highly toxic, volatile hydrazine derivative with the chemical formula . It is used as a rocket propellant in bipropellant rocket engines because it is hypergolic with various oxidizers such as ...

** Monomethylhydrazinium (cationic and exists as a variety of salts) *

Dimethylhydrazine Dimethylhydrazine is the name of two compounds with the molecular formula C2H8N2. These are: * unsymmetrical dimethylhydrazine (1,1-dimethylhydrazine), with both methyl groups bonded to the same nitrogen atom * symmetrical dimethylhydrazine (1,2 ...

s **

Symmetrical dimethylhydrazine symmetrical dimethylhydrazine, or 1,2-Dimethylhydrazine, is the organic compound with the formula (CH3NH)2. It is one of the two isomers of dimethylhydrazine. Both isomers are colorless liquids at room temperature, with properties similar to thos ...

(1,2-dimethylhydrazine) **

Unsymmetrical dimethylhydrazine Unsymmetrical dimethylhydrazine (UDMH; 1,1-dimethylhydrazine, НДМГ or codenamed Geptil) is a chemical compound with the formula H2NN(CH3)2 that is used as a rocket propellant. It is a colorless liquid, with a sharp, fishy, ammonia-like smell ...

(1,1-dimethylhydrazine) * Trimethylhydrazine ** 1,1,2-trimethylhydrazine ** 1,1,1-trimethylhydrazinium (cationic and exists as a variety of salts e.g. 1,1,1-trimethylhydrazinium iodide) * Tetramethylhydrazine ** 1,1,2,2-tetramethylhydrazine ** 1,1,1,2-tetramethylhydrazinium (cationic and exists as a variety of salts) * Pentamethylhydrazinium (cationic and exists as a variety of salts) * Hexamethylhydrazinediium (dication, exists as a variety of salts)

External links

* {{chemistry index Hydrazines