Key Documents

View All Documentation

1.02950

Dimethyl sulfoxide

Name: Dimethyl sulfoxide
Brand: MM

for spectroscopy Uvasol^®

Synonym(s):

Methanesulfinylmethane, Methyl sulfoxide, Dimethyl(oxido)sulfur, DMSO, DMSO

Select a Size

Change View

About This Item

Linear Formula:

(CH₃)₂SO

CAS Number:

67-68-5

Molecular Weight:

78.13

UNSPSC Code:

12191502

NACRES:

NA.03

EC Index Number:

200-664-3

MDL number:

MFCD00002089

Beilstein/REAXYS Number:

506008

Assay:

≥99.8% (GC)

Technique(s):

UV/Vis spectroscopy: suitable

Vapor pressure:

0.42 mmHg ( 20 °C)

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Quality Level

100

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.8% (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)

UV/Vis spectroscopy: suitable

impurities

≤0.0002 meq/g Acidity, ≤0.0002 meq/g Alkalinity, ≤0.05% Water

evapn. residue

≤0.0004%

color

APHA: ≤10

transmittance

270 nm, ≥35%, 280 nm, ≥50%, 310 nm, ≥80%, 330 nm, ≥90%, 350 nm, ≥97%

kinematic viscosity

2.14 cSt

transition temp

flash point 87 °C

density

1.10 g/mL (lit.)

UV absorption

λ: 270 nm A_max: ≤0.46, λ: 280 nm A_max: ≤0.30, λ: 310 nm A_max: ≤0.10, λ: 330 nm A_max: ≤0.05, λ: 350 nm A_max: ≤0.013

storage temp.

2-30°C

SMILES string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Description

General description

Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol<TMSYMBOL></TMSYMBOL> solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol<TMSYMBOL></TMSYMBOL> solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified.

Features and Benefits

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

Analysis Note

Purity (GC): ≥ 99.8 %
Evaporation residue: ≤ 0.0004 %
Water: ≤ 0.05 %
Color: ≤ 10 Hazen
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Transmission (at 270 nm): ≥ 35 %
Transmission (at 280 nm): ≥ 50 %
Transmission (at 310 nm): ≥ 80 %
Transmission (at 330 nm): ≥ 90 %
Transmission (from 350 nm): ≥ 97 %
Absorbance (at 270 nm): ≤ 0.46
Absorbance (at 280 nm): ≤ 0.30
Absorbance (at 310 nm): ≤ 0.10
Absorbance (at 330 nm): ≤ 0.05
Absorbance (from 350 nm): ≤ 0.013

Other Notes

Explore various lab safety accessories and equipment for safe handling of solvents to increase your safety level from the first usage.

Legal Information

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

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

Still not finding the right product?

Explore all of our products under Dimethyl sulfoxide

Storage Class

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library