328502
Dimethyl diselenide
96%
Synonym(s):
Methyl diselenide
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About This Item
Linear Formula:
(CH3)2Se2
CAS Number:
Molecular Weight:
187.99
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
230-410-7
MDL number:
Assay:
96%
Form:
liquid
InChI key
VLXBWPOEOIIREY-UHFFFAOYSA-N
InChI
1S/C2H6Se2/c1-3-4-2/h1-2H3
SMILES string
C[Se][Se]C
assay
96%
form
liquid
refractive index
n20/D 1.6388 (lit.)
bp
155-157 °C (lit.)
density
1.987 g/mL at 25 °C (lit.)
Quality Level
Related Categories
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.
Application
Dimethyl diselenide is the most powerful reagent used to identify distonic radical cations.
signalword
Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - STOT RE 2
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
140.0 °F - closed cup
flash_point_c
60 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Regulatory Information
危险化学品
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K K Thoen et al.
Journal of the American Society for Mass Spectrometry, 7(12), 1245-1250 (1996-12-01)
Dimethyl diselenide is demonstrated to be among the most powerful reagents used to identify distonic radical cations. Most such ions readily abstract CH3Se from dimethyl diselenide. The reaction is faster and more exclusive than CH3S(·) abstraction from dimethyl disulfide, a
Markus Lenz et al.
Environmental science & technology, 45(3), 1067-1073 (2010-12-25)
In this study we evaluate the potential of anaerobic granular sludge as an inoculum for the bioremediation of selenium-contaminated waters using species-specific analytical methods. Solid species formed by microbial reduction were investigated using X-ray absorption near-edge structure (XANES) spectroscopy at
William J Hunter et al.
Journal of chromatography. A, 1038(1-2), 295-297 (2004-07-06)
A simple method for the determination of volatile selenium compounds employing a gas chromatograph equipped with a photoionization detector is described. The method involves the direct injection of dimethylselenide (DMS) or dimethyldiselenide (DMDS) into the gas chromatograph; no derivatization of
Yiqiang Zhang et al.
Journal of environmental quality, 31(4), 1124-1128 (2002-08-15)
Volatilization of dimethyldiselenide (DMDSe) is one of the most important processes for removing selenium (Se) from Se-contaminated environments. However, the fate of DMDSe in soil is not known. In this study, we monitored the changes of DMDSe in the head
J E Spallholz et al.
Nutrition and cancer, 40(1), 34-41 (2002-01-22)
The reduction of cancer incidence by dietary supplementation with L-selenomethionine, L-Se-methylselenocysteine, and other methylated selenium compounds and metabolites is believed to be due to the metabolic generation of the monomethylated selenium species methylselenol. Dimethyldiselenide and methylseleninic acid were reduced by
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