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
83160
L-Pyroglutamic acid
≥99.0% (T), for peptide synthesis
Sinónimos:
(S)-(−)-2-Pyrrolidone-5-carboxylic acid, (S)-5-Oxo-2-pyrrolidinecarboxylic acid
About This Item
Productos recomendados
Nombre del producto
L-Pyroglutamic acid, ≥99.0% (T)
Ensayo
≥99.0% (T)
Formulario
solid
actividad óptica
[α]20/D −10.5±1°, c = 5% in H2O
pureza óptica
enantiomeric ratio: ≥99:1 (GC)
idoneidad de la reacción
reaction type: solution phase peptide synthesis
residuo de ign.
≤0.05%
mp
155-162 °C
160-163 °C (lit.)
aplicaciones
peptide synthesis
cadena SMILES
OC(=O)[C@@H]1CCC(=O)N1
InChI
1S/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)/t3-/m0/s1
Clave InChI
ODHCTXKNWHHXJC-VKHMYHEASA-N
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Aplicación
- Nonproteinogenic amino acids such as (3S,4R)-3,4-dimethyl-L-pyroglutamic acid and (3S,4R)-3,4-dimethyl-L-glutamine.[1]
- Chiral N-heterocyclic carbenes (NHCs) as catalysts for the asymmetric dimerization of alkylarylketenes to give the corresponding α-quaternary β-alkylidenyl-β-lactones.[2]
It is also used in the total synthesis of (−)-stemoamide[3] and celogentin C.[4]
Palabra de señalización
Danger
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Aquatic Chronic 3 - Eye Dam. 1
Código de clase de almacenamiento
11 - Combustible Solids
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
dust mask type N95 (US), Eyeshields, Gloves
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Protocolos
Science Slam panel: Leading gene therapy developers discuss commercialization challenges and the importance of robust process development plans.
Science Slam panel: Leading gene therapy developers discuss commercialization challenges and the importance of robust process development plans.
Science Slam panel: Leading gene therapy developers discuss commercialization challenges and the importance of robust process development plans.
Science Slam panel: Leading gene therapy developers discuss commercialization challenges and the importance of robust process development plans.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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Is this food grade?
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This item is not a food grade product. Currently, a food grade L-Pyroglutamic acid is not available.
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