Methylamine Hydrochloride is a colorless flaky crystal or white to off-white powder with hygroscopicity. Its aqueous solution is weakly acidic and it is freely soluble in water. It is mainly used as a basic raw material for medicine, pesticides, dyes and other organic synthesis, as well as for oil fields.

It is mainly used as a raw material for pharmaceuticals, pesticides (carbaryl, dimethoate, chlordimeform, etc.), dyes (alizarin intermediates, anthraquinone intermediates, etc.), explosives and fuels (water gel explosives, monomethylhydrazine, etc.), surfactants, accelerators, rubber additives, photographic chemicals and solvents.