Merck
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472301

Sigma-Aldrich

Dimethyl sulfoxide

ACS reagent, ≥99.9%

Synonym(s):
DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

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

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Application

Dimethyl sulfoxide (DMSO) has been used in the preparation of ethyl 4-[18F]fluorobenzoate. It has been used in the culture medium for 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay.

Packaging

4×4 L in poly bottle
100, 500, 6×500 mL in glass bottle
50 L in Pure-Pac™ 2
400 L in Pure-Pac™ 1
200 L in poly drum
1, 6×1, 2.5, 4, 4×4 L in glass bottle
18 L in VerSA-Flow™

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

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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