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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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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
B Mishra et al.
The journal of physical chemistry. A, 110(5), 1894-1900 (2006-02-03)
Pulse radiolysis coupled with absorption detection has been employed to study one-electron oxidation of selenomethionine (SeM), selenocystine (SeCys), methyl selenocysteine (MeSeCys), and selenourea (SeU) in aqueous solutions. Hydroxyl radicals (*OH) in the pH range from 1 to 7 and specific
B Mishra et al.
The journal of physical chemistry. B, 109(26), 12718-12723 (2006-07-21)
Reactions of biological oxidizing agents, such as hydroxyl radicals ((*)OH), singlet oxygen ((1)O(2)), hydrogen peroxide (H(2)O(2)), and peroxynitrite (ONOO(-)) with selenourea were studied. The kinetics of the reactions was followed using time-resolved techniques, and the bimolecular rate constants were determined.
K P Kalyanikutty et al.
Journal of nanoscience and nanotechnology, 7(6), 1916-1922 (2007-07-28)
Two-dimensional nanostructures in the form of ultra-thin crystalline films of CdSe and CuSe have been prepared at the organic-aqueous interface by reacting toluene solutions of metal cupferronates with an aqueous solution of N,N-dimethyl selenourea. The films have been examined using
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