INTRODUCTION

Methyl magnesium chloride is the simplest of Grignard’s reagents. The neat molecule is sensitive to air and moisture. Therefore, it is offered as solution in THF with variable molarity values. At low temperature, it may crystallize out as THF complex and regain solution form at ambient temperature.

Manufacture
The product is manufactured by reaction of chloromethane with magnesium in anhydrous diethyl ether. The synthesis generally requires presence of an initiator.

SynonymsMethyl (chloro) magnesium
Magnesium carbanide chloride
CAS no.676-58-4
EINECS no.211-629-7
Molecular formulaCH3MgCl
Molecular weight74.79
Structure

Applications

APIs
Ganaxolone, a synthetic neuroactive steroid
Medetomidine, a sedative veterinary
Chlorphenoxamine, an anticholinergic
Clemastine, an antihistamine
Intermediates
Dimethyl magnesium
Tetramethyl lead
Tetramethyl tin
Bis(cyclopentadienyl)dimethyl titanium
Styrallyl alcohol
2,6-Dimethyl-2-heptanol
Dimethyl phenethyl carbinol
Flavors & Fragrances
Hydroxycitronellal, an odorant with floral fragrance
Propenyl guaethol, flavor ingredient with vanilla odor
Others
Selective methylation agent for aldehydes, ketones, and carbonyls in organic syntheses

SPECIFICATIONS

TestUnitSpecification
AppearanceDark brown to grey coloured liquid
MolarityM2.90 – 3.30
Sedimentation%Max 2.0

STORAGE
Stored at ambient temperature under nitrogen blanket

PACKING
190 kg UN approved HDPE drums

REACH Status
Not registered yet

ExSyn offers methyl magnesium chloride on commercial scales and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please contact us.

More Products
In focus: 1,4,7-Trimethyl-1,4,7-triazonane (Me₃TACN)
Products in focus · 24/02/2026

1,4,7-Trimethyl-1,4,7-triazonane (Me₃TACN) is a valuable macrocyclic tridentate ligand derived from 1,4,7-triazacyclononane. In Me₃TACN, each nitrogen atom is substituted with a methyl group, which significantly modifies its steric and electronic properties. Me₃TACN is widely used as a ligand in coordination chemistry due to its ability to form stable complexes with transition metals such as Cu, Ni, Fe, Mn, and Zn.

READ MORE
In focus: Adenosine
Products in focus · 17/02/2026

Adenosine is a naturally occurring purine nucleoside composed of adenine and ribose, present in all living cells. It plays a vital role in biochemical processes such as energy transfer (ATP/ADP), signal transduction, and regulation of physiological functions, and is widely used in pharmaceutical applications.

READ MORE
In focus: Methyl-2- Methoxy-5-Sulfamoyl Benzoate
Products in focus · 10/02/2026

Methyl-2-Methoxy-5-Sulfamoyl Benzoate (MSMB) is a sulfur containing organic building block acting as a chemical intermediate. MSMB contains ester and sulfamoyl functional groups, which make it useful as a pharmaceutical and fine-chemical intermediate.

READ MORE
In focus: Imidazolidinyl Urea
Products in focus · 03/02/2026

Imidazolidinyl urea is a widely used antimicrobial preservative in the cosmetic and personal care industry. It is a formaldehyde-releasing compound that effectively inhibits the growth of bacteria, yeast, and molds, thereby extending the shelf life of formulations. Due to its broad-spectrum efficacy and cost-effectiveness, it is commonly used in rinse-off and leave-on products within regulated concentration limits.

READ MORE
In focus: 2-Cyanoethyl tetraisopropylphosphorodiamidite
Products in focus · 20/01/2026

Phosphorodiamidites are a unique class of phosphorus-based compounds characterized by one P–O bond and two P–N moieties. 2-Cyanoethyl tetraisopropylphosphorodiamidite plays a crucial role in solid-phase oligonucleotide synthesis. Beyond their application as synthetic precursors for oligonucleotides, phosphorodiamidites have also been reported as valuable starting materials for the synthesis of industrially relevant polymers and flame-resistant materials, including adhesives, coatings, and laminates.

READ MORE
In focus: Ferric Maltol
Products in focus · 13/01/2026

Ferric maltol is an oral iron complex composed of ferric iron (Fe³⁺) chelated with maltol, designed to improve iron absorption while reducing common gastrointestinal side effects associated with traditional iron salts. It is primarily used in the management of iron deficiency with better tolerability.

READ MORE
In focus: Phosphatidylcholine 90% from Soya Lecithin
Products in focus · 09/12/2025

Phosphatidylcholine (PC) is one of the most important phospholipids derived from soya lecithin and represents a key structural component of cell membranes. Phosphatidylcholine 90% refers to a highly purified grade where the PC content is enriched to around 90% through specialized extraction and purification steps.

READ MORE
In focus: Indorez® Kota Resin
Products in focus · 02/12/2025

Indorez® Kota Resin is a modified non self-cured phenolic resin, it can increase rubber adhesion to steel, polyester, rayon, nylon, aramid and other fabric cord. It’s an adhesive agent, acts as methylene acceptor, can 100% replace resorcinol and resorcinol resins in resorcinol- formaldehyde-silica, enhance adhesion between rubber and reinforcing materials.

READ MORE
In focus: Glyceryl Stearate Citrate
Products in focus · 25/11/2025

Glyceryl Stearate Citrate (GSC) is a plant-derived, biodegradable emulsifier commonly used in cosmetics and personal-care products. It functions primarily as an anionic oil-in-water (O/W) emulsifier, helping blend oils and water into smooth, stable creams and lotions. Its natural origin and gentle profile make it popular in eco-certified, organic, and sensitive-skin formulations.

READ MORE