41640

Dimethylsulfoxid

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

• Synonym(e): DMSO, Methylsulfoxid
• Lineare Formel: (CH₃)₂SO
• CAS-Nummer: 67-68-5
• Molekulargewicht: 78.13
• Beilstein: 506008
• EG-Nummer: 200-664-3
• MDL-Nummer: MFCD00002089
• UNSPSC-Code: 12191502
• PubChem Substanz-ID: 329756130
• NACRES: NA.21
• bp: 189 °C (lit.)

Eigenschaften

• Qualität: ACS reagent; puriss. p.a.
• Qualitätsniveau: 300
• Dampfdichte: 2.7 (vs air)
• Dampfdruck: 0.42 mmHg ( 20 °C)
• Assay: ≥99.9% (GC)
• Form: liquid
• Selbstzündungstemp.: 573 °F
• Expl.-Gr.: 42 %, 63 °F
• Methode(n): GC/GC: suitable
• Verunreinigungen: ≤0.001% free acid (as CH₃COOH); ≤0.1% water
• Abdampfrückstand: ≤0.005%
• Brechungsindex: n20/D 1.479 (lit.); n20/D 1.479
• bp: 189 °C (lit.)
• mp (Schmelzpunkt): 16-19 °C (lit.); 18-20 °C
• Dichte: 1.10 g/mL (lit.)
• Kationenspuren: 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
• InChIKey: IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

• Modification of gelatin by reaction with 1,6-diisocyanatohexane.: This study focuses on the modification of biopolymers using chemical agents, which could be relevant in contexts where DMSO is used as a reaction solvent ( Bertoldo et al., 2007).


• Characterization of O-acetyl-(4-O-methylglucurono)xylan isolated from birch and beech.: This research characterizes specific wood-derived xylans, potentially enhancing understanding of such biopolymers when dissolved in DMSO for analytical studies ( Teleman et al., 2002).

Vorsicht

Unterkühlt leicht und schmilzt langsam bei Raumtemperatur. Das verfestigte Produkt kann durch Erwärmen auf Raumtemperatur wieder verflüssigt werden, ohne dabei geschädigt zu werden.

Sonstige Hinweise

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

Zur Verwendung als Synthesereagens

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 1
• Flammpunkt (°F): 188.6 °F - closed cup
• Flammpunkt (°C): 87 °C - closed cup