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230499

Sigma-Aldrich

Selenourea

98%

Synonym(s):

2-Selenourea, Carbamimidoselenoic acid, Isoselenourea, Selenouronium

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About This Item

Linear Formula:
NH2CSeNH2
CAS Number:
630-10-4
Molecular Weight:
123.02
Beilstein:
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.

Signal Word

Danger

Hazard Statements

H300,H331,H373,H410

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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