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Merck

MX1458

Dimethyl sulfoxide

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Synonym(s):

Dimethyl sulfoxide, Dimethyl Sulfoxide, DMSO, DMSO

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About This Item

Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
EC Index Number:
200-664-3
UNSPSC Code:
12352119
Beilstein/REAXYS Number:
506008
MDL number:
Assay:
≥99.9% (GC)
Bp:
189 °C (lit.)
Vapor pressure:
0.42 mmHg ( 20 °C)
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agency

meets USP/NF

Quality Level

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.9% (GC)

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

dilution

(for analytical testing)

impurities

≤0.001 meq/g Titrable acid, ≤0.1% Water (H2O)

evapn. residue

≤0.01%

color

APHA: ≤10

refractive index

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

transition temp

flash point 87 °C

solubility

1000 g/L

density

1.10 g/mL (lit.)

shipped in

ambient

storage temp.

room temp

SMILES string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Application

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Packaging

M-Bottle for Solvents
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Analysis Note

AppearanceClear, colorless liquidAssay (GC)99.9% minColor (APHA)10 maxEvaporation residue0.01% maxTitrable acid0.001meq/g maxWater (H2O)0.1% max

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.


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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)

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