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: 2026-01-13 11:17:30

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	n20/D 1.6388(lit.)
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.