Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

Safety Information

V800164

Sigma-Aldrich

Dimethyl sulfoxide

AR, ≥99.5%

Synonym(s):

DMSO

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
(CH3)2SO
CAS Number:
67-68-5
Molecular Weight:
78.13
Beilstein:
506008
EC Number:
200-664-3
MDL number:
MFCD00002089
UNSPSC Code:
12191502
PubChem Substance ID:
329829211
grade:
AR
bp:
189 °C (lit.)
vapor pressure:
0.42 mmHg ( 20 °C)

grade

AR

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

product line

Vetec™

Assay

≥99.5%

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

dilution

(for analytical testing)

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

Looking for similar products? Visit Product Comparison Guide

General description

Dimethyl sulfoxide (DMSO) is a high-boiling polar aprotic solvent and mild oxidant used in organic synthesis. DMSO can also act as a one-carbon synthon in organic chemistry. It is a source of -Me, -SMe, -SO2Me functional groups. It is also used as a versatile reagent in Pfitzner-Moffatt oxidation, Swern oxidation, and Corey-Chaykovsky reaction.

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.

Legal Information

Vetec is a trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water soluble liquid

JAN Code

V800164-VAR:
V800164-2.5L:4548173323923
V800164-BULK:
V800164-6X500ML:4548173328201
V800164-500ML:4548173323930
V800164-500ML-PW:
V800164-2.5L-PW:
V800164-4X2.5L:4548173328195

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MMBB3854
MKBB4516V
MMBB4654
MMBB3634

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Dimethyl sulfoxide as a synthon in organic chemistry
Jones-Mensah E, et al.
Synthesis, 48, 1421-1436 (2016)
Hongjie An et al.
Advances in colloid and interface science, 222, 9-17 (2014-08-17)
The observation by Atomic Force Microscopy of a range of nanophases on hydrophobic surfaces poses some challenging questions, not only related to the stability of these objects but also regarding their wetting properties. Spherical capped nanobubbles are observed to exhibit
A Oguro-Ando et al.
Molecular psychiatry, 20(9), 1069-1078 (2014-10-15)
Rare maternally inherited duplications at 15q11-13 are observed in ~1% of individuals with an autism spectrum disorder (ASD), making it among the most common causes of ASD. 15q11-13 comprises a complex region, and as this copy number variation encompasses many
Mulmudi Hemant Kumar et al.
Advanced materials (Deerfield Beach, Fla.), 26(41), 7122-7127 (2014-09-13)
Lead free perovskite solar cells based on a CsSnI3 light absorber with a spectral response from 950 nm is demonstrated. The high photocurrents noted in the system are a consequence of SnF2 addition which reduces defect concentrations and hence the
Björn Zörner et al.
Brain : a journal of neurology, 137(Pt 6), 1716-1732 (2014-04-17)
Anatomical plasticity such as fibre growth and the formation of new connections in the cortex and spinal cord is one known mechanism mediating functional recovery after damage to the central nervous system. Little is known about anatomical plasticity in the
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service