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.pdf
Fortfahren mit
03880
Polyethylenimin -Lösung
~50% in H2O
Synonym(e):
Ethylenimin-Polymer -Lösung, PEI
Größe auswählen
| Packungsgröße | SKU | Verfügbarkeit | Preis |
|---|---|---|---|
| 100 mL | Warenkorb auf Verfügbarkeit prüfen | € 71,70 | |
| 500 mL | Warenkorb auf Verfügbarkeit prüfen | € 277,00 |
form
liquid
Quality Level
mol wt
Mr 600,000-1,000,000
concentration
~50% in H2O
InChI
1S/C2H5N/c1-2-3-1/h3H,1-2H2
InChI key
NOWKCMXCCJGMRR-UHFFFAOYSA-N
Application
Es kann zum Herstellen potenzieller Gentransferträger eingesetzt werden, da es den sauren pH-Wert des Lysosoms puffern und die DNA vor dem Abbau schützen kann.
Mit PEIfunktionalisierte Monolithe können zum Immobilisieren von Enzymen ohne Veränderungihrer Aktivität eingesetzt werden.
Features and Benefits
- Gute Biokompatibilität
- Flexible Polymerkette
- Kann leicht für spezifische Eigenschaften modifiziert oder funktionalisiert werden
- Hohe Transfektionseffizienz
Other Notes
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| form liquid | form - | form liquid | form - |
| mol wt Mr 600,000-1,000,000 | mol wt Mn ~60,000, Mw 750,000 | mol wt average Mw 1800 | mol wt average Mn ~60,000 by GPC, average Mw ~750,000 by LS |
| concentration ~50% in H2O | concentration 50 % (w/v) in H2O | concentration 50 wt. % in H2O | concentration 50 wt. % in H2O |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Sens. 1
Lagerklasse
10 - Combustible liquids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Artikel
We present an article that discusses two applications in particular; first, using these layers as polyelectrolyte membranes to control permeability.
Verwandter Inhalt
Professor Katayama discusses drug delivery systems exploiting the EPR effect, focusing on stimuli-responsive systems with novel materials.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 03880-500ML | 04061838628374 |
| 03880-100ML | 04061838628367 |
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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What is the Mw, Mn, and dispersity/PDI of this product?
1 answer-
The molecular weight of this product is listed in the 'PROPERITES' section as a range of 600,000-1,000,000 Da. The Mn and polydispersity have not been determined.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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What is the best way of long-term storage of this product, and how long is it stable when stored like this?
1 answer-
This product is stored at -20°C and is not assigned an expiration or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment. For more information, you may access the Product Dating Information document under ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/US/en/life-science/quality-and-regulatory-management/quality-services.
Helpful?
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What is the concentration of this product
1 answer-
The concentration of this product is 50% w/w.
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