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Merck
CN

328502

Dimethyl diselenide

96%

Synonym(s):

Methyl diselenide

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About This Item

Linear Formula:
(CH3)2Se2
CAS Number:
7101-31-7
Molecular Weight:
187.99
NACRES:
NA.22
PubChem Substance ID:
24859379
UNSPSC Code:
12352100
EC Number:
230-410-7
MDL number:
MFCD00008254

Key Documents

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Product Name

Dimethyl diselenide, 96%

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

100

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Application

Dimethyl diselenide is the most powerful reagent used to identify distonic radical cations.

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.

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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Certificates of Analysis (COA)

Lot/Batch Number
0000391708
0000380305
0000391708
0000380305
0000253681

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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.
Experientia, 39(3), 293-294 (1983-03-15)
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
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
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
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