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213365

Sigma-Aldrich

Selenium dioxide

ReagentPlus®, powder, 99.8% trace metals basis

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Synonym(s):
NSC 56753, Selenium oxide
Linear Formula:
SeO2
CAS Number:
Molecular Weight:
110.96
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor pressure

1 mmHg ( 157 °C)

Quality Level

product line

ReagentPlus®

Assay

99.8% trace metals basis

form

powder

color

white

mp

315 °C (subl.) (lit.)

SMILES string

O=[Se]=O

InChI

1S/O2Se/c1-3-2

InChI key

JPJALAQPGMAKDF-UHFFFAOYSA-N

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Application

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

Other Notes

Material may contain dark crystals which are unavoidable and do not impact product quality

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Tetrahedron Letters, 34, 2979-2979 (1993)
Asian Journal of Chemistry, 19, 4107-4107 (2007)
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
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.
Gary S Bañuelos et al.
Plant physiology, 155(1), 315-327 (2010-11-10)
The organ-specific accumulation, spatial distribution, and chemical speciation of selenium (Se) were previously unknown for any species of cactus. We investigated Se in Opuntia ficus-indica using inductively coupled plasma mass spectrometry, microfocused x-ray fluorescence elemental and chemical mapping (μXRF), Se

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