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34869

Sigma-Aldrich

Dimetilsulfóxido

suitable for HPLC, ≥99.7%

Sinónimos:

DMSO

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About This Item

Fórmula lineal:
(CH3)2SO
Número de CAS:
67-68-5
Peso molecular:
78.13
Beilstein:
506008
Número CE:
200-664-3
Número MDL:
MFCD00002089
Código UNSPSC:
41116105
ID de la sustancia en PubChem:
329755076
NACRES:
NA.21
Ensayo:
≥99.7%
técnicas:
HPLC: suitable
aplicaciones:
food and beverages
bp:
189 °C (lit.)
presión de vapor:
0.42 mmHg ( 20 °C)
En este momento no podemos mostrarle ni los precios ni la disponibilidad

densidad de vapor

2.7 (vs air)

Nivel de calidad

100

presión de vapor

0.42 mmHg ( 20 °C)

Ensayo

≥99.7%

Formulario

liquid

temp. de autoignición

573 °F

lim. expl.

42 %, 63 °F

técnicas

HPLC: suitable

impurezas

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

transmitancia

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

índice de refracción

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

densidad

1.10 g/mL (lit.)

aplicaciones

food and beverages

cadena SMILES

CS(C)=O

InChI

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

Clave InChI

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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Descripción general

El dimetilsulfóxido (DMSO) es un disolvente orgánico polar.[1] El DMSO activado por varios electrófilos (cloruro de oxalilo) se ha utilizado para oxidar varios alcoholes (primarios, secundarios, alílicos, bencílicos, modificados y bicíclicos). Como productos de la reacción se forman compuestos carbonilo.[2] Debido a su mayor estabilidad, se ha propuesto como un disolvente alternativo al metilcelosolve para la reacción de la ninhidrina.[3]

Aplicación

Adecuado para HPCL, espectrofotometría, análisis medioambientales

Precaución

Fácilmente superenfriado, vuelve a fundir lentamente a temperatura ambiente. Producto solidificado que puede volver a licuarse por calentamiento a temperatura ambiente sin detrimento del producto.

Otras notas

Si desea información sobre la miscibilidad del dimetilsulfóxido, visite el siguiente enlace:
Tabla de miscibilidad/inmiscibilidad del dimetilsulfóxido
Aviso importante
  • El artículo de referencia 34869-4X2.5L va a ser descatalogado. Pida la botella 34869-2.5L que es físicamente idéntica, con las mismas especificaciones exactas.
  • El artículo de referencia 34869-6X1L va a ser descatalogado. Pida la botella 34869-1L que es físicamente idéntica, con las mismas especificaciones exactas.

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Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

188.6 °F - closed cup

Punto de inflamabilidad (°C)

87 °C - closed cup

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number
SHBS4083
STBL4703
STBL4704
STBL4498
STBL4497

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Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Oxidation of alcohols by ?activated? dimethyl sulfoxide. A preparative, steric and mechanistic study.
Omura K and Swern D.
Tetrahedron, 34(11), 1651-1660 (1978)
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)
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)
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
Claudia C Faria et al.
Cancer research, 75(1), 134-146 (2014-11-14)
Medulloblastoma is the most common malignant pediatric brain tumor, with metastases present at diagnosis conferring a poor prognosis. Mechanisms of dissemination are poorly understood and metastatic lesions are genetically divergent from the matched primary tumor. Effective and less toxic therapies
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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.

      Helpful?

  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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