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Merck
CN

900645

Dimethyl sulfoxide

anhydrous, ZerO2®, ≥99.9%

Synonym(s):

Degassed and low oxygen dimethyl sulfoxide, Dimethyl sulfoxide ZerO2®, DMSO

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About This Item

Linear Formula:
(CH3)2SO
CAS Number:
67-68-5
Molecular Weight:
78.13
EC Number:
200-664-3
UNSPSC Code:
12191502
NACRES:
NA.21
Beilstein/REAXYS Number:
506008
MDL number:
MFCD00002089
Assay:
≥99.9%
Grade:
ZerO2®
Vapor pressure:
0.42 mmHg ( 20 °C)

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InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

InChI

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

SMILES string

CS(C)=O

grade

ZerO2®

Quality Level

100

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.9%

form

liquid

autoignition temp.

573 °F

quality

anhydrous

expl. lim.

42 %, 63 °F

dilution

(for analytical testing)

impurities

≤0.005% water
water

density

1.10 g/mL (lit.)

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Application

ZerO2 products are rigorously degassed with highly pure inert gas providing solvents and solutions (anhydrous if specified) with very low residual oxygen content.

Legal Information

ZerO2 is a registered trademark of Sigma-Aldrich Co. LLC

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.

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

188.6 °F - closed cup

flash_point_c

87 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS8721
SHBS4281
SHBQ5130
SHBQ3351
SHBP5631

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