所有图片(4)

276855

Sigma-Aldrich

二甲基亚砜

anhydrous, ≥99.9%

别名:
DMSO, 甲基亚砜
线性分子式:
(CH3)2SO
CAS号:
分子量:
78.13
Beilstein:
506008
EC 号:
MDL编号:
PubChem化学物质编号:

质量水平

100

等级

anhydrous

蒸汽密度

2.7 (vs air)

蒸汽压

0.42 mmHg ( 20 °C)

测定

≥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 string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

正在寻找类似产品? Visit 产品对比指南

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

20 L in Pure-Pac™ 2
100, 12×100 mL in Sure/Seal™
1, 6×1, 2 L in Sure/Seal™
200 L in Pure-Pac™ 1
18 L in Pure-Pac™ 1

注意

容易过度冷却,并在室温下缓慢融化固化的产品放在室温下可以再次液化,对其本身无影响。

其他说明

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。
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
Pure-Pac® II容器需要Micromatic MacroValve耦合器用于分配溶剂,Z560723。

法律信息

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

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

分析证书

原产地证书 (CofO)

  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.

A Practical Synthesis of Isocyanates from Isonitriles: Ethyl 2-Isocyanatoacetate
Hoang VLe and Ganem B
Organic Syntheses, 89, 404-404 (2012)
Dimethyl sulfoxide oxidations.
Epstein WW & Sweat FW.
Organic Syntheses, 67(3), 247-260 (1967)
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

技术文章

Titania Nanotubes: Synthesis and Applications

Electronically, it behaves as a wide band gap (3.2 eV) semiconductor and exhibits memristor properties.2 Optically, TiO2 has high opacity with a very high refractive index3 (>2.4), and it exhibits strong absorbance in the UV range.

我们的科学家团队拥有各种研究领域经验,包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门