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: Teprenone (Geranylgeranylacetone; GGA)
Products in focus · 31/03/2026

Teprenone (Geranylgeranylacetone, GGA) is a mixture of the all-trans and mono-cis isomers of 6,10,14,18-tetramethyl-5,9,13,17-nonadecatetraen-2-one (in a weight ratio of 3:2). It is an acyclic isoprenoid compound with a structure like retinoids and is widely used for the treatment of gastrointestinal ulcers.

READ MORE
In focus: Ciclopirox Olamine Ph.Eur.
Products in focus · 24/03/2026

Ciclopirox Olamine (CPO)  is the N-oxide of a 2 -hydroxy pyridine derivative that carries antifungal, antibacterial, and anti-inflammatory properties. It is composed of 6-cyclohexyl-1-hydroxy-4-methyl-2(1H)-pyridone combined with 2 aminoethanol (olamine) in a 1:1 ratio.

READ MORE
In focus: N,N-Dimethylglycine sodium salt (DMG Na)
Products in focus · 17/03/2026

N,N-Dimethylglycine sodium salt (DMG Na) is the sodium salt form of N,N-dimethylglycine, a tertiary amino acid derivative is white to off white crystalline solid, freely soluble in water.

READ MORE
In focus: Blown Castor Oil (15-17 Poise)
Products in focus · 10/03/2026

Blown Castor Oil (15-17 Poise) is a modified grade of Castor oil. The “15-17 Poise” specification refers to its viscosity range, indicating a medium-viscosity blown oil suitable for industrial applications requiring improved body, tackiness, and elasticity compared to regular castor oil.

READ MORE
In focus: Dimethyl Amino Ethanol (DMAE)
Products in focus · 03/03/2026

Dimethylaminoethanol (DMAE) is a is a tertiary amine that is ethanolamine having two N-methyl substituents. It is clear & colourless to pale yellow liquid with ammoniacal odor.  DMAE is stable at room temperature and is completely miscible with water as well as organic solvents such as alcohols and ethers. It decomposes at high temperatures. It is a versatile chemical intermediate primarily used as a curing agent for polyurethane foams and epoxy resins.

READ MORE
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