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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
Grade:
ZerO2®
Assay:
≥99.9%
Bp:
189 °C (lit.)
Vapor pressure:
0.42 mmHg ( 20 °C)

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Product Name

Dimethyl sulfoxide, anhydrous, ZerO2®, ≥99.9%

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

InChI

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

SMILES string

CS(C)=O

grade

ZerO2®

vapor density

2.7 (vs air)

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

refractive index

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

density

1.10 g/mL (lit.)

Quality Level

100

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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.

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.

Legal Information

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

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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