Dimethyl Sulfoxide (DMSO) 99.5%, ACS Grade, is an organosulfur compound with the formula (CH3)2SO and CAS number 67-68-5. It’s a polar aprotic solvent, which means it can dissolve both polar and nonpolar molecules. It also mixes with water and with a range of organic solvents. The American Chemical Society has approved this product as an ACS grade reagent, so you can use it where a defined reagent grade matters. Before you order, you can check the paperwork. The Safety Data Sheet and the Technical Data Sheet are listed under Product Manuals, and Certificates of Analysis are posted for this product too. Having those on hand makes it easier to match the chemical to your method and your records.
You’ll find DMSO working as a chemical solvent, a reagent and a free radical absorber. That’s why it shows up in research labs and commercial work across life sciences, chemical manufacturing, electronics, polymers and plastics, and agriculture. The trouble is that a solvent only helps if you can trust what’s in the bottle and get it when you need it. Missing paperwork or the wrong container size can stall a project fast. Lab Alley makes that part easier. Documents are available online right away, sizes run from small bottles to bulk, and hazmat shipping is handled from start to finish. Pick the size that fits your work, set up Autoship for steady supply, or request a quote for bulk orders. We’ll keep it on budget, on time, every time.
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Laboratory reagent
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General purpose chemical solvent
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Free radical absorber
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Dissolving polar and nonpolar molecules
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Research laboratory work
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Chemical manufacturing processes
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Polymer and plastics work
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Q: What is Dimethyl Sulfoxide (DMSO) used for?
A: DMSO is used as a chemical solvent, a reagent and a free radical absorber. It’s a polar aprotic solvent, so it can dissolve both polar and nonpolar molecules.Q: What does ACS Grade mean, and is it suitable for laboratory use?
A: ACS Grade means the American Chemical Society has approved this DMSO as an ACS grade reagent. It’s offered for research labs and commercial applications.Q: What sizes are available, and does it ship as hazmat?
A: You can choose 500ml, 1L, 4L, 20L or 55 gallon sizes, plus cases of 6 x 500ml, 4 x 1L or 4 x 4L. The DOT line on this page reads “DOT: Dimethyl Sulfoxide, NA1993, PG III.” It ships as hazmat, and a hazmat fee applies.Q: How do I get the SDS and Certificate of Analysis?
A: The Safety Data Sheet and Technical Data Sheet are listed under Product Manuals on this page, with the Certificates of Analysis just below them. You can also contact us to request an SDS and COA.Q: How should Dimethyl Sulfoxide be stored?
A: Follow the storage directions on the Safety Data Sheet. Our How to Store Dimethyl Sulfoxide guide covers it in more detail.Q: Does DMSO mix with water?
A: Yes. It’s miscible with water and with a variety of organic solvents.Q: Where can I learn how DMSO types differ?
A: Our Types of Dimethyl Sulfoxide article explains the differences, so you can pick the right one for your work.
Product Information
| CAS | 67-68-5 |
|---|---|
| Assay | NLT 99.9% |
| Color | Clear, Colorless Liquid |
| Boiling Point | 188° to 190° |
| Solubility | Miscible in water, ethanol, acetone, chloroform, benzene, and many other organic solvents |
| Molecular formula | C2H6OS |
| Molecular weight | 78.13 |
| Autoship Available | Yes |
| Residue after evaporation | NMT 0.01% |
| Titrabale acid | NMT 0.001 meq/g |
| Water | NMT 0.1% |
