| 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/D1.479(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 |