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276855

Sigma-Aldrich

二甲基亚砜

anhydrous, ≥99.9%

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:
12191502
PubChem化学物质编号:
57648266

等级

anhydrous

质量水平

200

蒸汽密度

2.7 (vs air)

蒸汽压

0.42 mmHg ( 20 °C)

检测方案

≥99.9%

形式

liquid

自燃温度

573 °F

expl. lim.

42 %, 63 °F

杂质

<0.005% water

蒸发残留物

<0.0005%

颜色

colorless

折射率

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

溶解性

H2O: miscible (completely)

密度

1.10 g/mL (lit.)

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

二甲基亚砜是一种非极性质子溶剂，通常用作有机反应中的反应介质和试剂。

应用

二甲基亚砜可用作将异腈转化为异氰酸酯的一种氧化剂。由草酰氯活化的DMSO可用于将长链醇氧化成羰基化合物。

包装

18L、200L采用Pure-Pac®不锈钢容器封装；100 mL, 250ml、1 L、2 L、6×1 L采用Sure/Seal®瓶封装
查看可回收的容器产品。

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

2024年CiteAb奖，授予在帕金森研究方面取得成功的供应商
Pure-Pac® II容器需要Micromatic MacroValve耦合器用于分配溶剂，Z560723。
如需关于二甲基亚砜混溶性的相关信息，请访问以下链接：
二甲基亚砜混溶性/不混溶性表
货号276855-4X2L的产品即将停产。请订购276855-2L单瓶装，因为其物理参数与上述产品本质相同。

法律信息

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

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

个人防护装备

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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分析证书(COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

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  1. What is the molarity of DMSO?

    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.

  2. What is the DMSO dissolved in?

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

  3. Where does DMSO come from?

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

  4. Does DMSO have any synthetic utility?

    DMSO has been used to oxidize thiols and disulfides to sulfonic acids, hydrolysis of epoxides, thioalkylation of phenols, and oxidation of primary alcohols and halides, and esters of primary alcohols to aldehydes.

  5. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

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

    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.

  7. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is Sure/Seal™ packaging?

    The Aldrich Sure/Seal™ packaging system is useful in the handling and storage of air-sensitive reagents.

  10. Is Dimethyl sulfoxide a sterile product?

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

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

    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. 

  12. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Dimethyl sulfoxide oxidations.
Epstein WW & Sweat FW.
Organic Syntheses, 67(3), 247-260 (1967)
A Practical Synthesis of Isocyanates from Isonitriles: Ethyl 2-Isocyanatoacetate
Hoang VLe and Ganem B
Organic Syntheses, 89, 404-404 (2012)
The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals
Royal Society of Chemistry null
Oxidation of long-chain and related alcohols to carbonyls by dimethyl sulfoxide" activated" by oxalyl chloride.
Mancuso AJ, et al.
The Journal of Organic Chemistry, 43(12), 2480-2482 (1978)
Young-Keun Yang et al.
Nature protocols, 2(7), 1740-1745 (2007-07-21)
This protocol describes detailed procedures for the preparation of a rhodamine-based mercury probe and for its applications to the detection of mercury in cells and vertebrate organisms. The mercury probe 1, which is prepared in two steps from rhodamine 6G
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