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34869

Sigma-Aldrich

二甲基亚砜

suitable for HPLC, ≥99.7%

别名:

DMSO, 甲基亚砜

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About This Item

线性分子式:
(CH3)2SO
CAS号:
67-68-5
分子量:
78.13
Beilstein:
506008
EC 号:
200-664-3
MDL编号:
MFCD00002089
UNSPSC代码:
41116105
PubChem化学物质编号:
329755076
NACRES:
NA.21
价格与库存信息目前不能提供

等级

HPLC grade

质量水平

100

蒸汽密度

2.7 (vs air)

蒸汽压

0.42 mmHg ( 20 °C)

方案

≥99.7%

表单

liquid

自燃温度

573 °F

expl. lim.

42 %, 63 °F

技术

HPLC: suitable

杂质

≤0.002% non-volatile matter
≤0.2% water (Karl Fischer)

透射比

270 nm, ≥20%
280 nm, ≥50%
300 nm, ≥80%
350 nm, ≥98%

折射率

n20/D 1.479 (lit.)

沸点

189 °C (lit.)

mp

16-19 °C (lit.)

密度

1.10 g/mL (lit.)

应用

food and beverages

SMILES字符串

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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相关类别

一般描述

二甲基亚砜(DMSO)是一种极性有机溶剂。[1]各种亲电试剂(草酸氯)活化的DMSO被用于氧化各种醇类(初级醇类、次级醇类、烯丙基醇类、苄基醇类、受阻醇类和双环醇类)。产生作为反应产物的羧基化合物。[2]由于其较高的稳定性，已被提出作为甲基纤维素溶液的替代溶剂用于茚三酮的反应。[3]

应用

适用于HPLC，分光光度法，环境检测

注意

在室温下容易过冷并缓慢重融。 固化产品可以通过加热至室温来重新液化，而不会损害产品。

其他说明

欲了解二甲基亚砜混溶性的更多资料，请浏览以下链接:
二甲基亚砜混溶性/不混溶性表
重要通知
  • 货号 34869-4X2.5L的产品即将停产。请订购34869-2.5L单瓶装，因为其具体参数与上述产品本质相同。
  • 货号34869-6X1L的产品即将停产。请订购34869-1L单瓶装，因为其物理参数与上述产品本质相同。

推荐产品

探索最适于HPLC或LC-MS分析的LiChropur试剂

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(°F)

188.6 °F - closed cup

闪点(°C)

87 °C - closed cup

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBS5662
SHBS4083
STBL4703
STBL4704
STBL4498

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Oxidation of alcohols by ?activated? dimethyl sulfoxide. A preparative, steric and mechanistic study.
Omura K and Swern D.
Tetrahedron, 34(11), 1651-1660 (1978)
A RAPID PERMETHYLATION OF GLYCOLIPID, AND POLYSACCHARIDE CATALYZED BY METHYLSULFINYL CARBANION IN DIMETHYL SULFOXIDE.
S HAKOMORI
Journal of biochemistry, 55, 205-208 (1964-02-01)
Amino acid analysis: aqueous dimethyl sulfoxide as solvent for the ninhydrin reaction.
S Moore
The Journal of biological chemistry, 243(23), 6281-6283 (1968-12-10)
Phillip McDonagh et al.
Veterinary microbiology, 174(3-4), 438-447 (2014-12-04)
Feline infectious peritonitis (FIP), a feline coronavirus (FCoV) induced disease, is almost invariably fatal with median life expectancy measured in days. Current treatment options are, at best, palliative. The objectives of this study were to evaluate a panel of nineteen
C F Brayton
The Cornell veterinarian, 76(1), 61-90 (1986-01-01)
Dimethyl sulfoxide (DMSO) is a very simple compound that has stimulated much controversy in the scientific and popular literature. Fig. 1 It is an aprotic solvent. Therapeutic and toxic agents that are not soluble in water are often soluble in
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Questions

1–8 of 8 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

      Helpful?

  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

      Helpful?

  3. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  4. What is the molarity of DMSO?

    1 answer

    1. DMSO will have a molarity of 14.1M, based on a density of 1.1 g/mL and a molecular weight of 78.13 g/mol.

      Helpful?

  5. Where does DMSO come from?

    1 answer

    1. DMSO is known to have been isolated from tree bark in the past. It is now a commericially synthesized solvent.

      Helpful?

  6. What is the DMSO dissolved in?

    1 answer

    1. DMSO is not dissolved in any solvent. It is a pure chemical compound that is a liquid at room temperature.

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  7. Dimethyl sulfoxide (DMSO) should be a liquid.  Why did it arrive as a solid?

    1 answer

    1. DMSO supercools easily, and re-melts slowly at room temperature. The melting point is 16-19 °C. The solidified product can be re-liquefied by warming to room temperature without detriment to the product.

      Helpful?

  8. Is Dimethyl sulfoxide a sterile product?

    1 answer

    1. No, this product is not considered sterile.  Product Nos. D2560 and D2438 are sterile-filtered.

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