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230499

Sigma-Aldrich

Selenourea

98%

Sinonimo/i:

2-Selenourea, Carbamimidoselenoic acid, Isoselenourea, Selenouronium

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1 G
79,10 €
10 G
575,00 €

79,10 €

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1 G
79,10 €
10 G
575,00 €

About This Item

Formula condensata:
NH2CSeNH2
Numero CAS:
630-10-4
Peso molecolare:
123.02
Beilstein:
1734744
Numero CE:
211-129-9
Numero MDL:
MFCD00008065
Codice UNSPSC:
12352100
ID PubChem:
24853808
NACRES:
NA.22

79,10 €

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Livello qualitativo

100

Saggio

98%

Stato

solid

Punto di fusione

210-215 °C (dec.)

Gruppo funzionale

amine

Stringa SMILE

NC(N)=[Se]

InChI

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

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Categorie correlate

Applicazioni

Selenourea [(SeC(NH2)2)] has been used as a selenium (Se) precursor for the insertion of Se into protein crystals.[1]
It can also be used as a reagent to synthesize:
  • Selenazoles from α -bromo ketones presence of β -cyclodextrin.[2]
  • Symmetrical diaryl selenides by C-Se cross coupling reaction in presence of coper oxide nanaoparticles as a catalyst.[3]
  • CdSe nanocrystals.[4]

Avvertenze

Danger

Indicazioni di pericolo

H300,H331,H373,H410

Classi di pericolo

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

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
BCCL9168
BCCK4577
BCCJ5328
BCCG5429
BCCF7366

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I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

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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.
Milind Devidas Deore et al.
Veterinary and human toxicology, 44(5), 260-263 (2002-10-04)
Selenium (SC) toxicity was experimentally induced in male buffalo calves following repeated oral administration of 0.3 mg selenourea/kg (providing 0.19 mg/Se kg) for 75 d. On the basis of the major toxic effects produced in the experimental animals, 10 additional
Visualizza tutti i documenti correlati

Domande

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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