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
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
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.)
SMILES string
C[Se][Se]C
InChI
1S/C2H6Se2/c1-3-4-2/h1-2H3
InChI key
VLXBWPOEOIIREY-UHFFFAOYSA-N
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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.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - STOT RE 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
140.0 °F - closed cup
Flash Point(C)
60 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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
Kathrin Schilling et al.
Journal of environmental quality, 40(3), 1021-1027 (2011-05-07)
If volatile organoselenides are to be analyzed for their stable Se isotope composition to elucidate sources and formation processes, organoselenides need to be trapped quantitatively to avoid artificial Se isotope fractionation. We developed an efficient trap of organoselenides to be
Elimination of selenium compounds by mice through formation of different volatile selenides.
S Jiang et al.
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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
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
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