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
447439
1-Methyl-L-tryptophan
95%, for peptide synthesis
Sinonimo/i:
(S)-2-Amino-3-(1-methyl-1H-indol-3-yl)propanoic acid, L-(-)-1-Methyltryptophan
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About This Item
Prodotti consigliati
Nome del prodotto
1-Methyl-L-tryptophan, 95%
Livello qualitativo
Saggio
95%
Stato
solid
Attività ottica
[α]24/D −8.0°, c = 2 in acetic acid
Impiego in reazioni chimiche
reaction type: solution phase peptide synthesis
Punto di fusione
242-245 °C (lit.)
applicazioni
peptide synthesis
Stringa SMILE
Cn1cc(C[C@H](N)C(O)=O)c2ccccc12
InChI
1S/C12H14N2O2/c1-14-7-8(6-10(13)12(15)16)9-4-2-3-5-11(9)14/h2-5,7,10H,6,13H2,1H3,(H,15,16)/t10-/m0/s1
ZADWXFSZEAPBJS-JTQLQIEISA-N
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Categorie correlate
Applicazioni
- In the preparation of L-tryptophan-based ligand for regioselective copper catalyzed N2-arylation of 1,2,3-triazoles.[1]
- As a key starting material for the total synthesis of (−)-ardeemin.[2]
- In the synthesis of cyclic peptide-capped gold nanoparticles as drug delivery systems.[3]
Codice della classe di stoccaggio
11 - Combustible Solids
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, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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What conditions do you recommend for long term storage of Product No. 447439, 1-Methyl-L-tryptophan?
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The long term storage temperature of the product 447139 is at room temperature. This information can be found in the MSDS sheet. This document is available from our website.
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The name of Product No. 447439 is "1-Methyl-L-tryptophan, 95%". How is that purity value determined?
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The purity of Product No. 447439 is based on elemental analysis. That is, the assayed values for percent carbon and nitrogen should be within about 95% of their theoretical values. But the speification sheet does not report an overall purity value per se.
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How do you recommend dissolving Product No. 447439, 1-Methyl-L-tryptophan?
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This product is soluble in 0.5 N Hydrochloric acid at 50 mg/mL. Based on information from one of our customers (not confirmed in our labs), this product is also soluble in 0.1 N sodium hydroxide at a 20 mM concentration. It is not soluble in DMSO.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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