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Merck
CN

204315

Selenium dioxide

99.999% trace metals basis

Synonym(s):

NSC 56753, Selenium oxide

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About This Item

Linear Formula:
SeO2
CAS Number:
7446-08-4
Molecular Weight:
110.96
NACRES:
NA.23
PubChem Substance ID:
24852252
UNSPSC Code:
12352303
EC Number:
231-194-7
MDL number:
MFCD00003562

Key Documents

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form

solid

InChI key

JPJALAQPGMAKDF-UHFFFAOYSA-N

InChI

1S/O2Se/c1-3-2

SMILES string

O=[Se]=O

vapor pressure

1 mmHg ( 157 °C)

assay

99.999% trace metals basis

mp

315 °C (subl.) (lit.)

Quality Level

200

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Related Categories

Application

Mild oxidizing reagent for allylic olefins and acetylenes. Conversion of 1,3-diketones to 1,2,3-triones.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
0000462086
0000462086
0000372216
0000323521
0000295554

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Tetrahedron Letters, 34, 2979-2979 (1993)
Asian Journal of Chemistry, 19, 4107-4107 (2007)
Valerie Boissel et al.
Chemical communications (Cambridge, England), (11)(11), 1398-1400 (2009-03-05)
Bridgehead metallation is possible in a ketone having the welwistatin skeleton, and this facilitates installation of the isothiocyanate function present in the natural product, and also enables synthesis of remarkable bridgehead alkenes.
Ying Li et al.
Environmental pollution (Barking, Essex : 1987), 158(6), 2317-2323 (2010-03-05)
In this study, we present a general protocol for the making of surface-imprinted core-shell magnetic beads via reversible addition-fragmentation chain transfer (RAFT) polymerization using RAFT agent functionalized iron oxide nanoparticles as the chain transfer agent. The resulting composites were characterized
Zoyne Pedrero et al.
Journal of chromatography. A, 1139(2), 247-253 (2006-12-05)
Selenium speciation in Se-enriched Lens esculenta grown in hydroponic culture containing inorganic selenium as Na(2)SeO(3) and Na(2)SeO(4) was performed. After 16 days of growth, the plants were collected and divided in two parts, roots and stems and then analysed to
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Articles

Oxidizing and Reducing Agents

Oxidation and reduction reactions are some of the most common transformations encountered in organic synthesis

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