472301

Dimethyl sulfoxide

ACS reagent, ≥99.9%

• Synonyma: DMSO
• Lineární vzorec: (CH₃)₂SO
• Číslo CAS: 67-68-5
• Molekulová hmotnost: 78.13
• Beilstein/REAXYS Number: 506008
• EC Number: 200-664-3
• MDL number: MFCD00002089
• UNSPSC Code: 12191502
• PubChem Substance ID: 329757302
• NACRES: NA.21
• grade: ACS reagent
• assay: ≥99.9%
• bp: 189 °C (lit.)
• vapor pressure: 0.42 mmHg ( 20 °C)

Vlastnosti

• grade: ACS reagent
• 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: ≤0.001 meq/g Titr. acid; ≤0.1% water
• evapn. residue: ≤0.01%
• color: clear colorless
• refractive index: n20/D 1.479 (lit.)
• bp: 189 °C (lit.)
• mp: 16-19 °C (lit.)
• 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

Popis

General description

Dimethyl sulfoxide is an organosulfur, commonly used as a polar solvent that can dissolve a wide range of polar and non-polar compounds. It is also utilized as a reaction reagent in several well-known processes, including swern oxidation, 2a pfitzner-moffatt oxidation, 2b, and the corey-chaykovsky reaction.

Application

Dimethyl sulfoxide (DMSO) has been used:

• in the preparation of ethyl 4-[¹⁸F]fluorobenzoate.
• in the culture medium for 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay.
• as a solvent in chemical synthesis.
• to dissolve and prepare stock solutions of small molecules, drugs, and chemical compounds for various assays and experiments.

Caution

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

Other Notes

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

Bezpečnostní informace

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 188.6 °F - closed cup
• flash_point_c: 87 °C - closed cup