Dimethyl sulfoxide
SIAL/276855 - anhydrous, ≥99.9%
Synonym: DMSO
CAS Number: 67-68-5
Empirical Formula (Hill Notation): C2H6OS
Molecular Weight: 78.13
EC Number: 200-664-3
MDL Number: MFCD00002089
Linear Formula: (CH3)2SO
Product Type: Chemical
Anhydrous, Sureseal
Anhydrous, Sureseal
Anhydrous, Sureseal
| assay | ≥99.9% |
| autoignition temp. | 573 °F |
| bp | 189 °C (lit.) |
| color | colorless |
| density | 1.10 g/mL (lit.) |
| evapn. residue | <0.0005% |
| expl. lim. | 42 %, 63 °F |
| form | liquid |
| grade | anhydrous |
| impurities | <0.005% water |
| InChI | 1S/C2H6OS/c1-4(2)3/h1-2H3 |
| InChI key | IAZDPXIOMUYVGZ-UHFFFAOYSA |
| mp | 16-19 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | CS(C)=O |
| solubility | H2O: miscible (completely) |
| vapor density | 2.7 (vs air) |
| vapor pressure | 0.42 mmHg ( 20 °C) |
| Application: | Dimethyl Sulfoxide may be used as an oxidant for the conversion of isonitriles into isocyanates. DMSO activated by oxalyl chloride can be used in the oxidation of long-chain alcohols to carbonyls. |
| 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. |
| General description: | Dimethyl Sulfoxide is an apolar protic solvent that is generally used as a reaction medium and reagent in organic reactions. |
| Legal Information: | Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Other Notes: | 2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research  |
| Other Notes: | For information on dimethyl sulfoxide miscibility, please visit the following link: Dimethyl Sulfoxide Miscibility/Immiscibility Table |
| Other Notes: | Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723. |
| Other Notes: | The article number 276855-4X2L will be discontinued. Please order the single bottle 276855-2L which is physically identical with the same exact specifications. |
| Packaging: | 1, 6×1, 2 L in Sure/Seal™ |
| Packaging: | 100, 12×100 mL in Sure/Seal™ |
| Packaging: | 18 L in Pure-Pac™ 1 |
| Packaging: | 18 L, 200 L packaged in Pure-Pac® stainless steel containers; 100 mL, 250ml, 1 L, 2 L, 6×1 L packaged in Sure/Seal® bottles |
| Packaging: | 20 L in Pure-Pac™ 2 |
| Packaging: | 200 L in Pure-Pac™ 1 |
| Packaging: | View returnable container options . |
| WGK Germany | WGK 1 |
| Flash Point(F) | 188.6 °F - closed cup |
| Flash Point(C) | 87 °C - closed cup |
| Purity | ≥99.9% |
| bp | 189 °C (lit.) |
| mp | 16-19 °C (lit.) |
| Density | 1.10 g/mL (lit.) |
| Refractive Index | n |
| UNSPSC | 12191502 |