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Merck
CN

5.89569

Dimethyl sulfoxide

anhydrous, ≥99.9%

Synonym(s):

DMSO

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About This Item

Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
NACRES:
NA.22
UNSPSC Code:
12352119
Beilstein/REAXYS Number:
506008
MDL number:
Grade:
anhydrous
Assay:
≥99.9%
Bp:
189 °C (lit.)
Vapor pressure:
0.42 mmHg ( 20 °C)
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Product Name

Dimethyl sulfoxide, anhydrous, ≥99.9%

SMILES string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

grade

anhydrous

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.9%

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

refractive index

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

solubility

H2O: miscible (completely)

density

1.10 g/mL (lit.)

Quality Level

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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

Regulatory Information

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