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Merck

D40752

Sigma-Aldrich

1,2-二溴乙烷

98%

别名:

EDB, 二溴化乙烯

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About This Item

线性分子式:
BrCH2CH2Br
CAS号:
分子量:
187.86
Beilstein:
605266
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22
价格与库存信息目前不能提供

蒸汽密度

~6.5 (vs air)

质量水平

蒸汽压

11.7 mmHg ( 25 °C)

方案

98%

表单

liquid

折射率

n20/D 1.539 (lit.)

沸点

131-132 °C (lit.)

mp

8-11 °C (lit.)

密度

2.18 g/mL at 25 °C (lit.)

SMILES字符串

BrCCBr

InChI

1S/C2H4Br2/c3-1-2-4/h1-2H2

InChI key

PAAZPARNPHGIKF-UHFFFAOYSA-N

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应用

1,2-Dibromoethane can be used:
  • To prepare functionalized styrenes by reacting with arylboronic acids via palladium-catalyzed cross-coupling reaction.[1]
  • Along with potassium iodide(KI) for α-acyloxylation of ketones with carboxylic acids without the use of transition metals and strong oxidants.[2]
  • In the synthesis of 5-aryl/alkyl-2-vinyl-2H-tetrazoles through one-pot regioselective vinylation of 5-tetrazoles without a metal catalyst or organocatalyst.[3]
  • In the preparation of aryltriethoxysilane using aryl bromide, Mg powder and tetraethyl orthosilicate through sonochemical Barbier-type reaction.[4]
  • As a reoxidizing reagent along with a silver catalyst in the regioselective carbomagnesiation of terminal alkynes with alkyl Grignard reagents.[5]

其他说明

储存时颜色可能变深

警示用语:

Danger

危险分类

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 1B - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

One-pot regioselective vinylation of tetrazoles: preparation of 5-substituted 2-vinyl-2H-tetrazoles
Roh J, et al.
Tetrahedron Letters, 51(10), 1411-1414 (2010)
1,2-Dibromoethane and KI mediated α-acyloxylation of ketones with carboxylic acids
Wang X, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 5(16), 2891-2894 (2019)
A facile and efficient synthesis of aryltriethoxysilanes via sonochemical Barbier-type reaction
Lee AS, et al.
Tetrahedron Letters, 47(39), 7085-7087 (2006)
Saturation vapor pressures and transition enthalpies of low-volatility organic molecules of atmospheric relevance: from dicarboxylic acids to complex mixtures.
Merete Bilde et al.
Chemical reviews, 115(10), 4115-4156 (2015-05-02)
Silver-catalyzed carbomagnesiation of terminal aryl and silyl alkynes and enynes in the presence of 1, 2-dibromoethane
Fujii Y, et al.
Chemical Communications (Cambridge, England), 47(9), 1115-1117 (2009)

Questions

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  1. 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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  2. 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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