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Alfa Aesar™ Methylmagnesium bromide, 3M in ether, packaged under Argon in resealable ChemSeal™ bottles

Chemical Identifiers

Chemical Name or Material Methylmagnesium bromide
CAS 75-16-1
Linear Formula CH3MgBr
Formula Weight 119.26
MDL Number MFCD00000041
UN Number UN1928
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Catalog Number Mfr. No. Quantity Price Quantity    


alfa aesar™
100mL CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to for assistance.


alfa aesar™
500mL CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to for assistance.
Description & Specifications


Formula Weight 119.26
Color Pale brown
Chemical Name or Material Methylmagnesium bromide
Storage Note 1
  • Packaged under Argon
Linear Formula CH3MgBr
Sensitivity Air & Moisture Sensitive
Density 1.035g/mL
Odor Ether-like
Packaging ChemSeal™ bottles
Concentration 3M in ether
Health Hazard 2 GHS H Statement
Extremely flammable liquid and vapor.
In contact with water releases flammable gas.
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
May cause drowsiness or dizziness.
CAS 75-16-1
DOT Information Transport Hazard Class: 4.3; Packaging Group: I; Proper Shipping Name: METHYL MAGNESIUM BROMIDE, IN ETHYL ETHER
Quantity 100mL
MDL Number MFCD00000041
Physical Form Liquid
UN Number UN1928
Health Hazard 1 Danger
Health Hazard 3 GHS P Statement
Keep away from heat/sparks/open flames/hot surfaces.
No smoking.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do.
Continue rinsing.
IF exposed or if you feel unwell: Immediately call a POISON CENTER or doctor/physician.
Store in a dry place.
Store in a closed container.

Methylmagnesium bromide, 3M in ether has the wide range of applications in organic synthesis. Alkylation of aldehydes and ketones is the most common applications of Grignard reagent. It is a strong nucleophile that can form new carbon-carbon bonds. Also like organolithium compounds, it is useful to form carbon-heteroatom bonds.

Soluble in ether, toluene and tetrahydrfuran. Insoluble in hydrocarbons.

It is highly flammable and reacts with moisture or water to form methane gas, so it should be stored in tightly closed containers.