Dimethyl sulfoxide

anhydrous, ≥99.9%

Fórmula linear:
Número CAS:
Peso molecular:
Beilstein/REAXYS Number:
Número EC:
Número MDL:
ID de substância PubChem:

Nível de qualidade




densidade de vapor

2.7 (vs air)

pressão de vapor

0.42 mmHg ( 20 °C)





temperatura de autoignição

573 °F

Lim. expl.

42 %, 63 °F


<0.005% water

resíduo de evaporação




índice de refração

n20/D 1.479 (lit.)


189 °C (lit.)


16-19 °C (lit.)


H2O: miscible (completely)


1.10 g/mL (lit.)

SMILES string




InChI key


Procurando produtos similares? Visit Guia de comparação de produtos

Categorias relacionadas

Descrição geral

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


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.


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


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

Outras notas

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.

Informações legais

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


10 - Combustible liquids

WGK Alemanha


Ponto de fulgor (ºF)

188.6 °F - closed cup

Ponto de fulgor (ºC)

87 °C - closed cup

Equipamento de proteção individual

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Certificado de análise

Certificado de origem

  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.

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
Dimethyl sulfoxide oxidations.
Epstein WW & Sweat FW.
Organic Syntheses, 67(3), 247-260 (1967)
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...
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)
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.
Leia mais

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica