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1.02931

Supelco

Dimethyl sulfoxide

for DNA and peptide synthesis (max. 0.025% H₂O)

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Synonym(s):
Methanesulfinylmethane, Methyl sulfoxide, Dimethyl(oxido)sulfur, DMSO, DMSO
Linear Formula:
(CH3)2SO
CAS Number:
67-68-5
Molecular Weight:
78.13
Beilstein:
506008
MDL number:
MFCD00002089
UNSPSC Code:
12191502
EC Index Number:
200-664-3
NACRES:
NA.05

vapor density

2.7 (vs air)

Quality Level

200

vapor pressure

0.42 mmHg ( 20 °C)

Assay

≥99.9% (GC)

form

liquid

autoignition temp.

573 °F

potency

28300 mg/kg LD50, oral (Rat)
40000 mg/kg LD50, skin (Rat)

expl. lim.

42 %, 63 °F

technique(s)

DNA amplification: suitable

impurities

≤0.0002 meq/g Alkalinity
≤0.0005 meq/g Acidity
≤0.025% Water

evapn. residue

≤10 mg/L

color

APHA: ≤10

refractive index

n20/D 1.479 (lit.)

kinematic viscosity

2.14 cSt

bp

189 °C (lit.)

mp

16-19 °C (lit.)

transition temp

flash point 87 °C

solubility

1000 g/L

density

1.10 g/mL (lit.)

application(s)

peptide synthesis

storage temp.

2-30°C

SMILES string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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Application


  • Dimethyl sulfoxide as a gas phase charge-reducing agent for the determination of PEGylated proteins′ intact mass.: This study explores the effectiveness of DMSO in reducing the charge of proteins during mass spectrometry, improving the accuracy of mass measurements for PEGylated proteins, a critical aspect in biopharmaceutical analyses (Skjærvø Ø et al., 2024).

  • Benzoselenadiazole-Functionalized H-Bonded Arylamide Foldamers: Solvent-Responsive Properties and Helix Self-Assembly Directed by Chalcogen Bonding in Solid State.: This paper discusses the role of DMSO in influencing the self-assembly properties of novel foldamers, showcasing its importance in the study of advanced material sciences (Liu CZ et al., 2024).

  • Controlling Interfacial Hydrogen Bonding at a Gold Surface: The Effect of Organic Cosolvents.: This study presents DMSO′s role in modulating hydrogen bonding at interfaces, particularly in the presence of gold surfaces, which is relevant in surface chemistry and sensor applications (Al-Mualem ZA et al., 2024).

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.

Specifications

Saturation Concentration in Air: 8.0 g/m3 (20 °C)

Analysis Note

Purity (GC): ≥ 99.9 %
Identity (IR): conforms
Color: ≤ 10 Hazen
Acidity: ≤ 0.0005 meq/g
Alkalinity: ≤ 0.0002 meq/g
Evaporation residue: ≤ 10 mg/l
Water: ≤ 0.025 %

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Certificates of Analysis (COA)

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