Dimethyldiselenide
Synonym(s):Methyl diselenide
- CAS NO.：7101-31-7
- Empirical Formula: C2H6Se2
- Molecular Weight: 188.01
- MDL number: MFCD00008254
- EINECS: 230-410-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-10 10:27:11
What is Dimethyldiselenide?
Chemical properties
orange liquid with a very unpleasant smell
The Uses of Dimethyldiselenide
Dimethyl diselenide is a powerful reagent used for identification of distonic radical cations
What are the applications of Application
Dimethyl diselenide is a powerful reagent used for identification of distonic radical cations
Definition
ChEBI: Dimethyl diselenide is an organoselenium compound that is diselane covalently bound to two methyl groups. It has been detected in onion-family vegetables and soft-necked garlics. It induces ER stress and toxic protein aggregation in the budding yeast, S. cerevisiae and used as a reagent to identify distonic radical cations. It has a role as a bacterial metabolite, a mammalian metabolite, a plant metabolite and a human xenobiotic metabolite.
General Description
Dimethyl diselenide is a volatile selenium species and its determination in biological samples by HPLC-inductively coupled argon plasma mass spectrometry was reported. Selenium alkylation with dimethyl diselenide was reported by solid-phase microextraction gas chromatography-mass spectrometry.
Properties of Dimethyldiselenide
| Melting point: | -82.2 °C |
| Boiling point: | 155-157 °C (lit.) |
| Density | 1.987 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 140 °F |
| storage temp. | 0-6°C |
| form | liquid |
| color | Light yellow to Brown |
| Water Solubility | Reacts with water. |
| Sensitive | Air & Moisture Sensitive |
| Exposure limits | ACGIH: TWA 0.2 mg/m3 NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, strong acids. |
| CAS DataBase Reference | 7101-31-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Dimethyl diselenide(7101-31-7) |
Safety information for Dimethyldiselenide
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H226:Flammable liquids H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P273:Avoid release to the environment. P314:Get medical advice/attention if you feel unwell. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
Computed Descriptors for Dimethyldiselenide
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