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189898

Methylmagnesium bromide solution

3.0 M in diethyl ether

Synonym(s):

Bromomethylmagnesium

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50 mL

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$61.70
100 mL

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$112.00
4 x 25 mL

Available to ship onNovember 05, 2026fromMILWAUKEE

$123.00
800 mL

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$530.00
4 x 100 mL

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$580.00
8 L
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$2,270.00
18 L

Available to ship onNovember 05, 2026fromMILWAUKEE

$3,530.00

About This Item

Linear Formula:
CH3MgBr
CAS Number:
Molecular Weight:
119.24
UNSPSC Code:
12352111
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
3535220
eCl@ss:
32150917
Concentration:
3.0 M in diethyl ether
Form:
liquid

$61.70


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Quality Segment

form

liquid

reaction suitability

reaction type: Grignard Reaction

packaging

Kilo-Lab™ of , Sure/Seal™ of

concentration

3.0 M in diethyl ether

density

1.035 g/mL at 25 °C

SMILES string

C[Mg]Br

InChI

1S/CH3.BrH.Mg/h1H3;1H;/q;;+1/p-1

InChI key

AVFUHBJCUUTGCD-UHFFFAOYSA-M

General description

Methylmagnesium bromide solution, also known as bromomethylmagnesium, is both a Lewis acid and nucleophile. It is commonly used as a grignard reagent in organic synthesis reactions.

Application

Methylmagnesium bromide solution (3M in diethyl ether) is used to synthesize:
  • 3S-(Boc-amino)-2,4-dimethyl-2-pentanol and methyl tert-butyl (S)-sulfoxide.
  • Methyl potassium polyimide (K-PIM-1) (MeMgBr).
  • 3(4R)-{3(2R,3S)-[4′-(1′-triphenylmethyl)imidazole]-2-bromo-1-oxobutyl)-4-phenyl2-oxazolidinone
  • Benzyl 2-(2-oxopropyl)piperidine-1-carboxylate
  • (R*, R*) 1-[1-(1-phenylethyl)pyrrolidin-2-yl]propan-2-one)

Packaging

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Kilo-Lab is a trademark of Merck KGaA, Darmstadt, Germany
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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description

3.0 M in diethyl ether

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~3.2 M in 2-methyltetrahydrofuran

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1.0 M in dibutyl ether

description

1.4 M in THF: toluene (1:3)

concentration

3.0 M in diethyl ether

concentration

~3.2 M in 2-methyltetrahydrofuran

concentration

1.0 M in dibutyl ether

concentration

1.4 M in THF: toluene (1:3)

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

200

form

liquid

form

liquid

form

-

form

-

density

1.035 g/mL at 25 °C

density

1.117 g/mL at 25 °C

density

0.856 g/mL at 25 °C

density

1.018 g/mL at 25 °C

packaging

Sure/Seal™ of , Kilo-Lab™ of

packaging

Sure/Seal™ of

packaging

Sure/Seal™ of

packaging

Sure/Seal™ of

reaction suitability

reaction type: Grignard Reaction

reaction suitability

reaction type: Grignard Reaction

reaction suitability

reaction type: Grignard Reaction

reaction suitability

reaction type: Grignard Reaction


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Signal Word

Danger

Target Organs

Central nervous system

supp_hazards

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

Flash Point (°F)

-40.0 °F - closed cup

Flash Point (°C)

-40 °C - closed cup

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 1 - Skin Corr. 1B - STOT SE 3 - Water-react. 1



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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