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Merck

165956

Sigma-Aldrich

苯磺酸甲酯

98%

别名:

Benzenesulfonic acid methyl ester, Benzenesulfonic acid, methyl ester, Methyl benzenesulphonate, Methyl besylate, methyl ester of benzenesulphonic acid

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100 G
$113.00
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$428.00

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100 G
$113.00
500 G
$428.00

About This Item

经验公式(希尔记法):
C7H8O3S
CAS号:
分子量:
172.20
EC 号:
MDL编号:
UNSPSC代码:
12352200
PubChem化学物质编号:
NACRES:
NA.22

$113.00


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质量水平

方案

98%

表单

liquid

官能团

sulfonic acid

储存温度

2-8°C

SMILES字符串

COS(=O)(=O)c1ccccc1

InChI

1S/C7H8O3S/c1-10-11(8,9)7-5-3-2-4-6-7/h2-6H,1H3

InChI key

CZXGXYBOQYQXQD-UHFFFAOYSA-N

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应用

苯磺酸甲酯可作为甲基化试剂:
  • 用于四溴噻吩的C-甲基化反应在丁基锂的存在下合成三溴-甲基噻吩。
  • 用于镍催化下惰性卤代烃和酰氯经甲基化反应制备甲基化烷烃和酮。
还可作为反应剂,用于sophoridinol(槐定醇)衍生物醚化生成sophoridinol的N-取代甲基醚衍生物。

象形图

CorrosionExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Oral - Skin Corr. 1B - Skin Sens. 1

储存分类代码

8A - Combustible corrosive hazardous materials

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Faceshields, Gloves, Goggles, 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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Zhen Liu et al.
Journal of pharmaceutical and biomedical analysis, 168, 23-29 (2019-02-21)
Alkyl sulfonate esters have been widely concerned as genotoxic impurities (GTIs). A gas chromatography triple-quadrupole mass spectrometry (GC-MS/MS) method has been developed for trace determination of 9 commonly encountered sulfonate esters in drug substances. Three different solvents of acetonitrile (ACN)
Julian L Goggi et al.
Molecular imaging and biology, 22(4), 993-1002 (2020-02-02)
Cancer immunotherapy has shown huge potential in the fight against cancer, but only a small proportion of patients respond successfully to treatment. Non-invasive methods to stratify responders from non-responders are critically important as immune therapies are often associated with immune-related

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/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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