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94563 Sigma-Aldrich

Dimethyl sulfoxide

analytical standard

Synonym: DMSO

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Properties

Related Categories A-F, A-L, Additional Standards, Alcoholic & Nonalcoholic Beverages, All Alphabetically Sorted,
grade   analytical standard
vapor density   2.7 (vs air)
vapor pressure   0.42 mmHg ( 20 °C)
InChI Key   IAZDPXIOMUYVGZ-UHFFFAOYSA-N
assay   ≥99.95% (GC)
form   neat
autoignition temp.   573 °F
shelf life   limited shelf life, expiry date on the label
expl. lim.   42 %, 63 °F
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
color   colorless
refractive index   n20/D 1.479(lit.)
  n20/D 1.479
bp   189 °C(lit.)
mp   16-19 °C(lit.)
solubility   H2O: miscible (completely)
density   1.10 g/mL(lit.)
format   neat

Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

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.

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Other Notes

For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table

Price and Availability

Safety & Documentation

Safety Information

RIDADR 
NA 1993 / PGIII
WGK Germany 
1
RTECS 
PV6210000
Flash Point(F) 
188.6 °F
Flash Point(C) 
87 °C

Frequently Asked Questions

What is the molarity of DMSO?
DMSO will have a molarity of 14.1M, based on a density of 1.1 g/mL and a molecular weight of 78.13 g/mol.
What is the DMSO dissolved in?
DMSO is not dissolved in any solvent. It is a pure chemical compound that is a liquid at room temperature.
Where does DMSO come from?
DMSO is known to have been isolated from tree bark in the past. It is now a commericially synthesized solvent.
Does DMSO have any synthetic utility?
DMSO has been used to oxidize thiols and disulfides to sulfonic acids, hydrolysis of epoxides, thioalkylation of phenols, and oxidation of primary alcohols and halides, and esters of primary alcohols to aldehydes. To view this information in the D2650 product information sheet, click on the following link: http://www.sigmaaldrich.com/etc/medialib/docs/Sigma/Product_Information_Sheet/d2650pis.Par.0001.File.tmp/d2650pis.pdf
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
Dimethyl sulfoxide (DMSO) should be a liquid.  Why did it arrive as a solid?
DMSO supercools easily, and re-melts slowly at room temperature. The melting point is 16-19 °C. The solidified product can be re-liquefied by warming to room temperature without detriment to the product.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles

Articles

GC Analysis of Class 3 Residual Solvents on Equity®-1 after SPME using 100 μm PDMS Fiber

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GC Analysis of Class 3 Residual Solvents on Equity®-5

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GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

From our library of Articles, Sigma-Aldrich presents GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10
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GC Analysis of Class 3 Residual Solvents on VOCOL® after SPME using 100 μm PDMS Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of Class 3 Residual Solvents on VOCOL® after SPME using 100 μm PDMS Fiber
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Pharmaceutical, Size-exclusion chromatography, Solid phase microextractions

GC Analysis of Residual Solvents on SPB®-1 SULFUR after SPME using 65 μm PDMS/DVB Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of Residual Solvents on SPB®-1 SULFUR after SPME using 65 μm PDMS/DVB Fiber
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Pharmaceutical, Purification, Solid phase microextractions

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Peer-Reviewed Papers
15

References

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