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545996

Sigma-Aldrich

Seleno-L-cystine

95%, for peptide synthesis

Sinonimo/i:

(R,R)-3,3′-Diseleno-bis(2-aminopropionic acid), L-Selenocystine

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250 MG
152,00 €
1 G
289,00 €

152,00 €


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Cambia visualizzazione
250 MG
152,00 €
1 G
289,00 €

About This Item

Formula condensata:
CO2HCH(NH2)CH2(Se)2CH2CH(NH2)CO2H
Numero CAS:
Peso molecolare:
334.09
Beilstein:
1969559
Numero MDL:
Codice UNSPSC:
12352209
ID PubChem:
NACRES:
NA.22

152,00 €


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Nome del prodotto

Seleno-L-cystine, 95%

Livello qualitativo

Saggio

95%

Stato

powder or crystals

Attività ottica

[α]20/D −28°, c = 1 in NaOH

Impiego in reazioni chimiche

reaction type: solution phase peptide synthesis

Punto di fusione

224.5-229.5 °C (lit.)

applicazioni

peptide synthesis

Temperatura di conservazione

2-8°C

Stringa SMILE

N[C@@H](C[Se][Se]C[C@H](N)C(O)=O)C(O)=O

InChI

1S/C6H12N2O4Se2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
JULROCUWKLNBSN-IMJSIDKUSA-N

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Applicazioni

Seleno-L-cystine can be used for the synthesis of:
  • Biologically active selenol compounds.[1]
  • Non-natural selenylated diamino acids.[2]

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

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

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

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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I clienti hanno visto anche

Slide 1 of 3

1 of 3

Andrzej Gawor et al.
Animals : an open access journal from MDPI, 10(5) (2020-05-13)
Identification and quantification of the selenium species in biological tissues is imperative, considering the need to properly understand its metabolism and its importance in various field of sciences, especially nutrition science. Although a number of studies deals with the speciation
Synthesis of novel Se-substituted selenocysteine derivatives as potential kidney selective prodrugs of biologically active selenol compounds: evaluation of kinetics of ?-elimination reactions in rat renal cytosol
Andreadou I, et al.
Journal of Medicinal Chemistry, 39(10), 2040-2046 (1996)
Novel selenium-containing non-natural diamino acids
Caputo R, et al.
Tetrahedron Letters, 48(8), 1425-1427 (2007)
Rui Gusmão et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 17(2), 321-329 (2011-10-22)
Selenium-containing compounds play an important role in antioxidant defense systems, binding to toxic metals, preventing their uptake into cells, and thus protecting cells from metal-induced formation of reactive oxygen species. Here, we present a proposal for a relatively new method
Tianfeng Chen et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 63(2), 105-113 (2008-05-31)
Epidemiological and clinical studies have demonstrated that dietary supplementation of selenium (Se) could reduce the incidence of human cancers. In this study, selenocystine, a nutritionally available selenoamino acid, was identified as a novel agent with broad-spectrum antitumor activity. A panel

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  1. 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

      Utile?

  2. 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?

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