Key Documents

View All Documentation

276855

Dimethyl sulfoxide

Name: Dimethyl sulfoxide
Brand: SIAL

anhydrous, ≥99.9%

Synonym(s):

DMSO

Select a Size

Change View

About This Item

Linear Formula:

(CH₃)₂SO

CAS Number:

67-68-5

Molecular Weight:

78.13

EC Number:

200-664-3

UNSPSC Code:

12191502

PubChem Substance ID:

57648266

Beilstein/REAXYS Number:

506008

MDL number:

MFCD00002089

Assay:

≥99.9%

Grade:

anhydrous

Bp:

189 °C (lit.)

Vapor pressure:

0.42 mmHg ( 20 °C)

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

grade

anhydrous

Quality Level

200

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.9%

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

impurities

<0.005% water

evapn. residue

<0.0005%

color

colorless

refractive index

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

solubility

H₂O: miscible (completely)

density

1.10 g/mL (lit.)

SMILES string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Description

General description

Dimethyl Sulfoxide is an apolar protic solvent that is generally used as a reaction medium and reagent in organic reactions.

Application

Dimethyl Sulfoxide may be used as an oxidant for the conversion of isonitriles into isocyanates. DMSO activated by oxalyl chloride can be used in the oxidation of long-chain alcohols to carbonyls.

Packaging

18 L, 200 L packaged in Pure-Pac^® stainless steel containers; 100 mL, 250ml, 1 L, 2 L, 6×1 L packaged in Sure/Seal^® bottles

View returnable container options.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table

Pure-Pac^® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

The article number 276855-4X2L will be discontinued. Please order the single bottle 276855-2L which is physically identical with the same exact specifications.

Legal Information

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

Disclaimer

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Still not finding the right product?

Explore all of our products under Dimethyl sulfoxide

Storage Class

10 - Combustible liquids

flash_point_f

188.6 °F - closed cup

flash_point_c

87 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

チタニアナノチィーブ：合成および応用

TiO2は、電子工学的には広いバンドギャップ半導体とメモリスタ特性を示し、光学的には高い不透明性と紫外吸収性を示します。

ペロブスカイト太陽電池の基礎

注目の新技術「ペロブスカイト太陽電池」を簡単に作製できる実験手順をご紹介します。

Titania Nanotubes: Synthesis & Apps

TiO2 exhibits wide band gap semiconductor and memristor properties electronically, with high opacity and UV absorbance optically.