SoleChem

Methylamine hydrochloride

CAS
593-51-1
EC
209-795-0
Mol. Weight
67.52 g/mol

Description

Methylamine hydrochloride (CAS 593-51-1), also sold as monomethylamine hydrochloride, is the stable, solid salt form of methylamine used where the free base gas would be impractical to handle.

It serves as a controlled source of methylamine in synthesis and research, releasing the reactive amine under controlled conditions. In pharmaceutical manufacturing, it functions as a key building block.

This compound is essential in the synthesis of active pharmaceutical ingredients, including antivirals, analgesics, and CNS compounds. Agrochemical producers use it to manufacture herbicides and pesticides.

It is frequently utilized where a methylamine moiety is required in the final structure. In biotechnology and life sciences, it is used in buffer preparation and as a reagent in biochemical assays.

Research laboratories also use it as a reference standard and synthetic intermediate in small-scale organic synthesis. The product is supplied as a white crystalline powder or granular solid.

It is available in technical and pharmaceutical-grade specifications to meet the purity requirements of both industrial synthesis and regulated drug manufacturing. This ensures compliance with USP and BP standards.

Packaging ranges from laboratory-scale quantities to bulk industrial supply. Documentation is available to support GMP procurement workflows and other regulatory requirements for global distribution.

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Physical Properties

Melting Point 227.5 °C
Boiling Point 227 °C
Density 0.8306 (rough estimate)
Flash Point 225-230°C/15mm
Appearance white to light tan solid
Color White crystalline
Odor Odorless
Form powder
Water Solubility soluble
Vapor Pressure 0.134Pa at 25℃
Refractive Index 1.5500 (estimate)
pH 5-7 (10g/l, H2O, 20℃)
Log P -3.82

Safety & Handling (Learn More)

Warning GHS07
Hazard Statements
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P301+P317 Get emergency medical help.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P332+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29211190
Storage Class 11 - Combustible Solids
WGK (Germany) 1

Documentation

Other Names

N-Methylammonium chloride|Monomethylammonium chloride|Monomethylamine hydrochloride|Methanamine, hydrochloride (1:1)|Methylammonium chloride|M439EX322K|RefChem:818507

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