Dimethyl Sulfoxide
CAS Number: 67-68-5
Synonyms:
sulfinylbis(methane)
Methyl sulfoxide, for analysis ACS, 99.9+%
Methyl sulfoxide, for analysis ACS, 99.9+%
Appearance: clear colorless liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
First synthesized in 1866 by Alexander Zaytsev in the Russian Empire, dimethyl sulfoxide is an organosulfur compound. This colorless liquid serves as an important polar aprotic solvent capable of dissolving both polar and nonpolar substances. It mixes readily with numerous organic solvents as well as water.
Parameters
| Property | Value |
| Melting point | 18.4 °C |
| Boiling point | 189 °C(lit.) |
| density | 1.100 g/mL at 20 °C |
| vapor density | 2.7 (vs air) |
| vapor pressure | 0.42 mm Hg (20 °C) |
| refractive index | n20/D 1.479(lit.) |
| FEMA | 3875 | METHYLSULFINYLMETHANE |
| Fp | 192 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: miscible (completely) |
| pka | 35(at 25℃) |
| form | liquid (temperature dependent) |
| color | clear colorless |
| Relative polarity | 0.444 |
| Odor | Mild garlic odor |
| Odor Type | alliaceous |
| biological source | synthetic |
| explosive limit | 1.8-63.0%(V) |
| Water Solubility | Soluble in water, methanol, acetone, ether, benzene, chloroform. |
| FreezingPoint | 18.4℃ |
| Sensitive | Hygroscopic |
| λmax | λ: 285 nm Amax: ≤0.20 λ: 295 nm Amax: ≤0.20 |
| JECFA Number | 507 |
| Merck | 14,3259 |
| BRN | 506008 |
| Dielectric constant | 41.9（55℃） |
| Stability: | Stable. Incompatible with a very wide range of materials, including acid chlorides, strong acids, strong oxidizing agents, strong reducing agents, phosphorus halides, moisture, copper wool + trichloroacetic acid. Reacts violently with a number of materials – consult a full data sheet before use. Hygroscopic. |
| InChIKey | IAZDPXIOMUYVGZ-UHFFFAOYSA-N |
| LogP | -1.35 |
| Surface tension | 42.179mN/m at 298.15K |
| CAS DataBase Reference | 67-68-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Dimethyl sulfoxide(67-68-5) |
| EPA Substance Registry System | Dimethyl sulfoxide (67-68-5) |
| Absorption | passes test |
Product Application of Dimethyl Sulfoxide#67-68-5
DMSO is a polar aprotic solvent widely used in chemical synthesis, polymerase chain reactions (PCR), and as a cryoprotectant for cell, tissue and organ preservation. It protects cells from mechanical damage caused by ice crystals during freezing. DMSO is included in cell freezing media for storing primary cells, subcultured cells, recombinant heteroploid cell lines, hybridoma cells, embryonic stem cells (ESC), and hematopoietic stem cells. It is often used together with BSA or fetal bovine serum (FBS).
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