ChemicalBook > CAS DataBase List > ETHYNYLMAGNESIUM BROMIDE

ETHYNYLMAGNESIUM BROMIDE

Product Name
ETHYNYLMAGNESIUM BROMIDE
CAS No.
4301-14-8
Chemical Name
ETHYNYLMAGNESIUM BROMIDE
Synonyms
ETHYLVINYLETHER;ethynylmagnesium bromide solution;ETHYNYLMAGNESIUM BROMIDE, 0.5M SOLUTION IN TETRAHYDROFURAN;Ethynylbromomagnesium;Bromo(ethynyl)magnesium;ETHYNYLMAGNESIUM BROMIDE;Magnesium ethynyl bromide;Acetylene magnesium bromide;Ethynylmagnesium bromide (6CI);Ethynyl Magnesium Bromide .5M in THF
CBNumber
CB3187306
Molecular Formula
C2HBrMg
Formula Weight
129.24
MOL File
4301-14-8.mol
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ETHYNYLMAGNESIUM BROMIDE Property

Density 
0.94 g/mL at 25 °C
Flash point:
−20 °F
storage temp. 
2-8°C
form 
Liquid
color 
Colorless to yellow to brown to gray
BRN 
3600874
InChI
InChI=1S/C2H.BrH.Mg/c1-2;;/h1H;1H;/q;;+1/p-1
InChIKey
HUGJUYPSXULVQQ-UHFFFAOYSA-M
SMILES
C(#C)[Mg]Br
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Safety

Hazard Codes 
F,C
Risk Statements 
11-14-22-34-40-37-19-14/15
Safety Statements 
16-26-36/37/39-45-43-9
RIDADR 
UN 3399 4.3/PG 2
WGK Germany 
1
F 
1-3-10
HazardClass 
4.3, 3
HS Code 
29319090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H261In contact with water releases flammable gas

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

H351Suspected of causing cancer

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P231+P232Handle under inert gas. Protect from moisture.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P370+P378In case of fire: Use … for extinction.

P402+P404Store in a dry place. Store in a closed container.

P403+P235Store in a well-ventilated place. Keep cool.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
346152
Product name
Ethynylmagnesium bromide solution
Purity
0.5 M in THF
Packaging
100ml
Price
$74.7
Updated
2025/07/31
Sigma-Aldrich
Product number
346152
Product name
Ethynylmagnesium bromide solution
Purity
0.5 M in THF
Packaging
800ml
Price
$341
Updated
2025/07/31
American Custom Chemicals Corporation
Product number
ING0004251
Product name
ETHYNYLMAGNESIUM BROMIDE
Purity
95.00%
Packaging
100ML
Price
$2349.15
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
ING0004251
Product name
ETHYNYLMAGNESIUM BROMIDE
Purity
95.00%
Packaging
800ML
Price
$6499.19
Updated
2021/12/16
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ETHYNYLMAGNESIUM BROMIDE Chemical Properties,Usage,Production

Chemical Properties

Colorless to yellow to brown to grey liquid

Uses

Ethynylmagnesium bromide solution can be used in:

  • The preparation of the alkyne component in an enyne cross-metathesis leading to conjugated dienes.
  • Ethynylation of chiral α-(dibenzylamino) aldehydes.
  • The synthesis of ethynyl aziridines.
  • To prepare alkyl(triethynyl)germanes from tert-alkyltrichlorogermanes and 2-butyltrichlorogermane.
  • The preperation of a key intermediate in the total synthesis of (+)-4-demethoxydaunomycin.

reaction suitability

reaction type: Grignard Reaction

Synthesis

An Organic Synthesis preparation of ethynyl magnesium bromide and chloride from Acetylene and Ethylmagnesium Bromide or butylmagnesium chloride, respectively, is available. The use of butylmagnesium chloride instead of ethylmagnesium bromide is recommended because of the chloride's greater solubility.

Precautions

Ethynylmagnesium halides are air and moisture-sensitive. They are usually used immediately after preparation.

ETHYNYLMAGNESIUM BROMIDE Preparation Products And Raw materials

Raw materials

Tetrahydrofuran Acetylene Bromoethane Magnesium

Preparation Products

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ETHYNYLMAGNESIUM BROMIDE Suppliers

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View Lastest Price from ETHYNYLMAGNESIUM BROMIDE manufacturers

Career Henan Chemical Co
Product
Bromo(ethynyl)magnesium 4301-14-8
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
25kg
Release date
2019-07-09

4301-14-8, ETHYNYLMAGNESIUM BROMIDERelated Search:

Methylmagnesium Bromide Lithium acetylide ethylenediamine complex Magnesium, bromocyclobutyl- ISOBUTYLMAGNESIUM CHLORIDE OCTYLMAGNESIUM CHLORIDE DODECYLMAGNESIUM BROMIDE ISOBUTYLMAGNESIUM BROMIDE N-PENTYLMAGNESIUM BROMIDE Ethylmagnesium bromide Vinylmagnesium bromide ISOPROPYLMAGNESIUM BROMIDE N-PROPYLMAGNESIUM BROMIDE 1-PROPENYLMAGNESIUM BROMIDE ETHYNYLMAGNESIUM CHLORIDE Phosphine oxide, ethynyldiphenyl- Magnesium bromide Magnesium bromide hexahydrate ETHYNYLMAGNESIUM BROMIDE

  • ETHYNYLMAGNESIUM BROMIDE
  • ethynylmagnesium bromide solution
  • ETHYNYLMAGNESIUM BROMIDE, 0.5M SOLUTION IN TETRAHYDROFURAN
  • ETHYNYLMAGNESIUM BROMIDE SOLUTION, ~0.5 M IN THF
  • ETHYLVINYLETHER
  • EthynylMagnesiuM broMide, 0.5 M solution in THF, SpcSeal
  • Ethynylbromomagnesium
  • Ethynyl magnesium bromide solution THF
  • EthynylMagnesiuM broMide, 0.5 M solution in THF, J&KSeal
  • Ethynylmagnesium bromide, 0.5M solution in THF, AcroSeal
  • Ethynylmagnesium bromide solution(0.5 M solution in THF)
  • Ethynylmagnesiumbromidesolution(0.5Mintetrahydrofuran)
  • Ethynylmagnesium bromide tetrahydrofuran 0.5M
  • Ethynylmagnesium bromide, 0.5M solution in THF, AcroSea
  • EthynylMagnesiuM broMide, 0.5 M solution in THF
  • Bromo(ethynyl)magnesium
  • Ethynylmagnesium Bromide (0.5M in THF)
  • Acetylene magnesium bromide
  • Ethynylmagnesium bromide (6CI)
  • Ethynyl Magnesium Bromide .5M in THF
  • Magnesium ethynyl bromide
  • 4301-14-8
  • C2BrMg
  • HCCMgBr
  • C2HBrMg
  • C2HMgBr
  • HC8801CMgBr
  • Organometallic Reagents
  • Grignard Reagents
  • Alkynyl
  • Grignard Reagent
  • Alkynyl
  • Grignard Reagents
  • Organometallic Reagents