Stability and storage data for the reconstituted material is unavailable. Generally, a solution of DTT in Hepes buffer, pH 7.75 is stable for one week at 2 to 8 °C if the container is tightly sealed and the solution is protected from atmospheric oxygen by argon or nitrogen. It is recommended to store the solution for one week at 2 to 8 °C as above or to prepare the solution fresh.
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Informazioni su questo articolo
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Nome del prodotto
DL-Ditiotreitolo, ≥98% (HPLC), ≥99.0% (titration)
InChI key
VHJLVAABSRFDPM-QWWZWVQMSA-N
InChI
1S/C4H10O2S2/c5-3(1-7)4(6)2-8/h3-8H,1-2H2/t3-,4-/m1/s1
SMILES string
O[C@H](CS)[C@H](O)CS
assay
≥98% (HPLC)
≥99.0% (titration)
form
powder
reaction suitability
reagent type: reductant
color
white
mp
41-44 °C (lit.)
solubility
H2O: soluble 50 mg/mL, clear, colorless to very faintly yellow
application(s)
general analytical
storage temp.
2-8°C
Quality Level
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Categorie correlate
1 of 4
Questo articolo | D9779 | 43815 | 43819 |
|---|---|---|---|
| assay ≥98% (HPLC), ≥99.0% (titration) | assay ≥98% (HPLC), ≥99% (titration) | assay ≥99.5% (RT) | assay ≥99.0% (RT) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| application(s) general analytical | application(s) - | application(s) - | application(s) - |
| mp 41-44 °C (lit.) | mp 41-44 °C (lit.) | mp 41-44 °C (lit.) | mp 40-43 °C, 41-44 °C (lit.) |
| solubility H2O: soluble 50 mg/mL, clear, colorless to very faintly yellow | solubility H2O: 50 mg/mL | solubility H2O: 0.1 M at 20 °C, clear, colorless | solubility H2O: 50 mg/mL, clear, colorless, H2O: freely soluble, acetone: freely soluble, chloroform: freely soluble, diethyl ether: freely soluble, ethanol: freely soluble, ethyl acetate: freely soluble |
| form powder | form powder | form powder | form powder |
Application
- come uno dei reagenti nella riduzione seguita da alchilazione della caseina αs1, il principale allergene del latte di mucca.[1]
- come un componente del terreno per la distruzione della membrana degli spermatozoi e la loro riattivazione.[2]
- per mantenere la stabilità dell′enzima, dal momento che il tiolo protegge efficacemente i siti attivi del biocatalizzatore.[3]
- come agente riducente per testare la specificità della reazione dell′N-etilmaleimide con i gruppi solfidrilici.[4]
- nell′analisi proteomica per la digestione delle proteine in soluzione prima della spettrometria di massa[5]
- come componente del tampone per la quantificazione delle proteine, per preparare tamponi di lavaggio, tamponi di lisi, tamponi del campione e tamponi di eluizione della proteina.[6][4]
Biochem/physiol Actions
Features and Benefits
- DTT di qualità elevata (HPLC≥98%), (titolazione≥99.0%)
- Idoneo per elettroforesi e analisi di proteomica
General description
Other Notes
Comparable product
Related product
used together
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2
Classe di stoccaggio
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Articoli
Compare columns in resolving medium-sized antibody fragments after digestion with DTT or IdeS using Reversed-Phase Chromatography for analysis.
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Ist eine 1000 mM DTT Lösung in Wasser stabil, wenn man sie einfriert (-20°C)? Ist DTT (5mM D-0632) in einem Pipes-Puffer pH. 7,1 bei 15°C stabil, wenn man die Lösung bei -20°C einfriert?
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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/418/501/product-dating-information-06-25-mk.pdfUtile?
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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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How long can the powder be left out a room temperature?
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The long term storage recommendation for this product is refrigerated at 2-8°C, but is shipped at ambient temperature. Refrigerated products that ship at ambient temperature are stable for up to 2 weeks to allow for transit time. Items left at room temperature for short periods will not be adversely effected.
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What is the shelf life of this product once the stock solution is made up please?
1 risposta-
A solution of DTT in Hepes buffer, pH 7.75 is stable for one week at 2 to 8 °C if the container is tightly sealed and the solution is protected from atmospheric oxygen by argon or nitrogen.
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