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Merck

545996

Sigma-Aldrich

Seleno-L-cystine

95%, for peptide synthesis

Sinónimos:

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

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About This Item

Fórmula lineal:
CO2HCH(NH2)CH2(Se)2CH2CH(NH2)CO2H
Número de CAS:
Peso molecular:
334.09
Beilstein:
1969559
Número MDL:
Código UNSPSC:
12352209
ID de la sustancia en PubChem:
NACRES:
NA.22
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Nombre del producto

Seleno-L-cystine, 95%

Nivel de calidad

Ensayo

95%

Formulario

powder or crystals

actividad óptica

[α]20/D −28°, c = 1 in NaOH

idoneidad de la reacción

reaction type: solution phase peptide synthesis

mp

224.5-229.5 °C (lit.)

aplicaciones

peptide synthesis

temp. de almacenamiento

2-8°C

cadena SMILES

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

Clave InChI

JULROCUWKLNBSN-IMJSIDKUSA-N

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Aplicación

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

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

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

Código de clase de almacenamiento

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

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

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


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I Andreadou et al.
Journal of medicinal chemistry, 39(10), 2040-2046 (1996-05-10)
Eighteen Se-substituted selenocysteine derivatives were synthesized as potential kidney selective prodrugs which can be activated by renal cysteine conjugate beta-lyase to selenium-containing chemoprotectants or antitumor agents. Selenocysteine derivatives with aliphatic and benzylic Se-substituents were synthesized by reducing selenocystine to selenocysteine
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)
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
F Moreno et al.
The Analyst, 135(10), 2700-2705 (2010-08-21)
The simultaneous speciation of elements is of great concern, especially in the study of the interactions of species in living organisms. Here we report a method based on the coupling of HPLC-ICP-MS that is capable of separating and analyzing different

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    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

      Helpful?

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

    1 answer
    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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