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230499

Sigma-Aldrich

Selenourea

98%

Sinónimos:

2-Selenourea, Carbamimidoselenoic acid, Isoselenourea, Selenouronium

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About This Item

Fórmula lineal:
NH2CSeNH2
Número de CAS:
630-10-4
Peso molecular:
123.02
Beilstein/REAXYS Number:
1734744
EC Number:
211-129-9
MDL number:
MFCD00008065
UNSPSC Code:
12352100
PubChem Substance ID:
24853808
NACRES:
NA.22

assay

98%

form

solid

mp

210-215 °C (dec.)

SMILES string

NC(N)=[Se]

InChI

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

InChI key

IYKVLICPFCEZOF-UHFFFAOYSA-N

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Application

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.

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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A novel synthesis of CdSe nanocrystals
Epifani M, et al.
Materials Letters, 58(19), 2429-2432 (2004)
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
Zakhele Ndala et al.
Nanomaterials (Basel, Switzerland), 10(9) (2020-09-13)
Herein we report on the use of different metal precursors in the synthesis of MoSe2 nanomaterials in order to control their morphology. The use of Mo(CO)6 as the metal precursor resulted in the formation of wrinkled few-layer nanosheets, while the
M Narender et al.
The Journal of organic chemistry, 72(5), 1849-1851 (2007-02-03)
Selenazoles were synthesized from alpha-bromo ketones and selenourea in the presence of beta-cyclodextrin in water at 50 degrees C under atmospheric pressure.
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
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