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230499

Sigma-Aldrich

Selenharnstoff

98%

Synonym(e):

2-Selenourea, Carbamimidoselenoic acid, Isoselenourea, Selenouronium

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About This Item

Lineare Formel:
NH2CSeNH2
CAS-Nummer:
630-10-4
Molekulargewicht:
123.02
Beilstein:
1734744
EG-Nummer:
211-129-9
MDL-Nummer:
MFCD00008065
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24853808
NACRES:
NA.22

Qualitätsniveau

100

Assay

98%

Form

solid

mp (Schmelzpunkt)

210-215 °C (dec.)

SMILES String

NC(N)=[Se]

InChI

1S/CH4N2Se/c2-1(3)4/h(H4,2,3,4)

InChIKey

IYKVLICPFCEZOF-UHFFFAOYSA-N

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Anwendung

Selenourea [(SeC(NH2)2)] has been used as a selenium (Se) precursor for the insertion of Se into protein crystals.
It can also be used as a reagent to synthesize:
  • Selenazoles from α -bromo ketones presence of β -cyclodextrin.
  • Symmetrical diaryl selenides by C-Se cross coupling reaction in presence of coper oxide nanaoparticles as a catalyst.
  • CdSe nanocrystals.

Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

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

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Analysenzertifikate (COA)

Lot/Batch Number
BCCG5429
BCCF7366
BCCD3235
MKCM3760
MKCJ4682

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Sung Min Kwon et al.
Science advances, 4(4), eaap9104-eaap9104 (2018-04-18)
We report a general strategy for obtaining high-quality, large-area metal-chalcogenide semiconductor films from precursors combining chelated metal salts with chalcoureas or chalcoamides. Using conventional organic solvents, such precursors enable the expeditious formation of chalco-gels, which are easily transformed into the
Sanpei Zhang et al.
Nano letters, 17(6), 3518-3526 (2017-05-10)
The direct lattice strain, either distortion, compressive, or tensile, can efficiently alter the intrinsic electrocatalytic property of the catalysts. In this work, we report a novel and effective strategy to distort the lattice structure by constructing a metastable MoSSe solid
Sang Keun Ha et al.
Biological & pharmaceutical bulletin, 28(5), 838-840 (2005-05-03)
This study investigated inhibitory effects of N,N-unsubstituted selenourea derivatives on tyrosinase activity. Three types of N,N-unsubstituted selenoureas derivatives exhibited inhibitory effect on dopa (3,4-dihydroxyphenylalanine) oxidase activity of mushroom tyrosinase. Compound D at a concentration of 200 microM exhibited 55.5% of
V Prakash Reddy et al.
The Journal of organic chemistry, 75(24), 8720-8723 (2010-11-26)
Selenourea is used as an effective selenium surrogate in the C-Se cross-coupling reaction catalyzed by copper oxide nanoparticles under ligand free conditions. This protocol has been utilized for the synthesis of a variety of symmetrical diaryl selenides in good to
Giorgio Feroci et al.
Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 18(3), 227-234 (2005-06-22)
In this paper, we present a polarographic study of systems containing different inorganic and organic selenium compounds (sodium selenite, sodium selenate, seleno-methionine and seleno-urea) and metal ions (Zn2+, Cd2+ Hg2+) of the 12th group of elements in the periodic table.
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