Methylamine

Methylamine is the simplest alkylamine, a gas at ordinary room temperature and pressure (boiling point −6.3 °C), which makes its commercial handling fundamentally different from every other liquid or solid product in our catalogue. It is traded in two distinct forms: as an anhydrous liquefied gas, compressed and stored under its own vapour pressure in pressurised cylinders or ISO tanks (UN 1061, Flammable Gas), and separately as a 40% w/w aqueous solution, a free-flowing liquid at ambient conditions, packed in conventional drums or IBCs (UN 1235, Flammable Liquid, Corrosive). These are two different UN numbers with two different packaging and handling profiles, not two names for the same shipped product, and a buyer should specify which form they need rather than assume one implies the other.

Methylamine is a well-documented building block across pharmaceutical, agrochemical, and general fine-chemical synthesis, used wherever an N-methyl group needs to be introduced onto a larger molecule -- including as a starting material in several agrochemical active-ingredient syntheses and pharmaceutical intermediate chains. We note, factually and without further elaboration, that because of its chemical utility this substance is subject to recognised precursor-chemical controls and monitoring in a number of jurisdictions; we do not provide synthesis routes, dosing, or any other operational detail beyond this regulatory-status note, and we supply it strictly for documented, legitimate industrial and pharmaceutical-intermediate end uses, with standard end-use and customer verification applied to orders.

Where it fits in the synthesis chain

We supply Methylamine itself, in either of its two commercial forms. We do not manufacture or supply any finished pharmaceutical, agrochemical, or other downstream product made using it.

Grades we supply

The anhydrous gas is typically offered at 98%+ purity; the aqueous solution is typically offered at 40% w/w, with other concentrations available on request.

Methylamine is made industrially by reaction of methanol with ammonia over a solid acid catalyst at elevated temperature and pressure, a process that co-produces dimethylamine and trimethylamine as the methanol-to-ammonia ratio and reaction conditions shift the product distribution toward more highly substituted amines.

Reaction conditions — typically an excess of ammonia relative to methanol — are tuned to favour methylamine as the major product, since the three amines (mono-, di-, and tri-methylamine) are the structurally related co-products of the same catalytic amination chemistry.

The crude product mixture is separated by fractional distillation, exploiting the different boiling points of methylamine, dimethylamine, and trimethylamine, and the methylamine fraction is then either liquefied and packed as the anhydrous gas or dissolved to the target concentration as the aqueous solution, depending on which commercial form is being produced.

Two forms, two UN numbers — stated explicitly rather than defaulted

Every other product in our catalogue is a liquid or a solid, shipped in drums, and this page is the first time that pattern doesn't apply by default. We want to be explicit rather than quietly pick one form and describe it as if it were the only option: the anhydrous liquefied gas (UN 1061) and the 40% w/w aqueous solution (UN 1235) are both genuine, separately available commercial forms of this substance, with meaningfully different packaging, handling, and dangerous-goods documentation. A buyer should tell us which form their process requires — we do not treat one as the default and the other as an afterthought.