41640

Dimethyl sulfoxide

puriss. p.a., ACS reagent, ≥99.9% (GC)

• Synonym(s): DMSO
• Linear Formula: (CH₃)₂SO
• CAS Number: 67-68-5
• Molecular Weight: 78.13
• Beilstein: 506008
• Número de EC: 200-664-3
• Número MDL: MFCD00002089
• ID de la sustancia en PubChem: 329756130
• NACRES: NA.21

Properties

• grado: ACS reagent; puriss. p.a.
• Nivel de calidad: 300
• densidad de vapor: 2.7 (vs air)
• presión de vapor: 0.42 mmHg ( 20 °C)
• ensayo: ≥99.9% (GC)
• formulario: liquid
• temp. de autoignición: 573 °F
• lim. expl.: 42 %, 63 °F
• impurezas: ≤0.001% free acid (as CH₃COOH); ≤0.1% water
• residuo de evap.: ≤0.005%
• índice de refracción: n20/D 1.479 (lit.); n20/D 1.479
• bp: 189 °C (lit.)
• mp: 16-19 °C (lit.); 18-20 °C
• densidad: 1.10 g/mL (lit.)
• trazas de catión: Al: ≤0.5 mg/kg; Ba: ≤0.1 mg/kg; Bi: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.02 mg/kg; Cu: ≤0.02 mg/kg; Fe: ≤0.5 mg/kg; K: ≤0.5 mg/kg; Li: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Mo: ≤0.1 mg/kg; Na: ≤1 mg/kg; Ni: ≤0.5 mg/kg; Pb: ≤0.1 mg/kg; Sr: ≤0.1 mg/kg; Zn: ≤0.1 mg/kg
• SMILES string: CS(C)=O
• InChI: 1S/C2H6OS/c1-4(2)3/h1-2H3
• InChI key: IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Description

Descripción general

Dimethyl sulfoxide (DMSO) is a polar solvent. DMSO activated by electrophile (oxalyl chloride) has been used to oxidize various alcohols (primary, secondary, allylic, benzylic, hindered and bicyclic). Carbonyl compounds are formed as reaction products. It has been proposed as an alternate solvent for methyl cellosolve for use in ninhydrin reaction, due to its high stability.

Precaución

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

Otras notas

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

Use as reagent in synthesis

Safety Information

• Código de clase de almacenamiento: 10 - Combustible liquids
• WGK: WGK 1
• Punto de inflamabilidad F: 188.6 °F - closed cup
• Punto de inflamabilidad C: 87 °C - closed cup