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360074

Sigma-Aldrich

Magnesium bromide

98%

Sinónimos:

Ddibromomagnesium, Magnesium bromide salt, Magnesium dibromide

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About This Item

Fórmula lineal:
MgBr2
Número de CAS:
7789-48-2
Peso molecular:
184.11
Número CE:
232-170-9
Número MDL:
MFCD00011105
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
24862142
NACRES:
NA.22
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Nivel de calidad

200

Ensayo

98%

Formulario

powder

mp

711 °C (lit.)

densidad

3.72 g/mL at 25 °C (lit.)

cadena SMILES

Br[Mg]Br

InChI

1S/2BrH.Mg/h2*1H;/q;;+2/p-2

Clave InChI

OTCKOJUMXQWKQG-UHFFFAOYSA-L

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Aplicación

Magnesium bromide (MgBr2) can be used as a catalyst in:
  • Acetylation and benzoylation of alcohols (primary and secondary) with acid anhydrides.[1]
  • In the synthesis of dihydropyrimidinones [2], trifluoromethylnaphthalenes [3], substituted 1,2,3,4 tetrahydropyrimidin-2-ones [4].
  • In the preparation of Aldol derivatives by hydrogenation of Baylis-Hillman olefins.[5]
  • Deprotection of SEM (2-(Trimethylsilyl)ethoxymethyl) ether group.[6]

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
0000436077
0000436077
MKCX2547
0000321936
0000338336

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Synthesis of trifluoromethylnaphthalenes
Mellor JM, et al.
Tetrahedron, 56(51), 10067-10074 (2000)
Magnesium bromide mediated highly diastereoselective heterogeneous hydrogenation of olefins
Bouzide, Abderrahim
Organic Letters, 4(8), 1347-1350 (2002)
Efficient Magnesium Bromide-Catalyzed One-pot Synthesis of Substituted 1, 2, 3, 4-Tetrahydropyrimidin-2-ones Under Solvent-free Conditions
Salehi H and Guo Q-X
Chin. J. Chem., 23(1), 91-97 (2005)
A facile and efficient one-pot synthesis of dihydropyrimidinones catalyzed by magnesium bromide under solvent-free conditions
Salehi H and Guo Q-X
Synthetic Communications, 34(1), 171-179 (2004)
Ana Peterson et al.
Food chemistry, 305, 125486-125486 (2019-09-15)
The formation of 3-methyl-2,4-nonanedione (MND) during red wine aging can contribute to the premature evolution of aroma, characterized by the loss of fresh fruit and development of dried fruit flavors. The identification of two new hydroxy ketones, 2-hydroxy-3-methylnonan-4-one (syn- and
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Questions

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  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/449/386/product-dating-information-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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