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
03880
Poly(ethyleneimine) solution
~50% in H2O
Synonym(s):
Ethyleneimine polymer solution, PEI
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 mL | Available to ship TODAY | $91.70 |
500 mL | Available to ship TODAY | $331.00 |
$91.70
Available to ship TODAYDetails
form
liquid
Quality Segment
mol wt
Mr 600,000-1,000,000
feature
hydrophilic
concentration
~50% in H2O
InChI
1S/C2H5N/c1-2-3-1/h3H,1-2H2
InChI key
NOWKCMXCCJGMRR-UHFFFAOYSA-N
Application
It can be used to prepare potential gene delivery carriers as it can buffer the acidic pH of the lysosome and protect the DNA from degradation.
PEIfunctionalized monoliths can be used to immobilize enzymes without alteringtheir activity.
Features and Benefits
- Good biocompatibility
- Flexible polymer chain
- It can be easily modified or functionalized for specific features
- High transfection efficiency
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| description ~50% in H2O | description analytical standard, 50 % (w/v) in H2O | description average Mn 2100, PDI <1.3 | description average Mn 5,000, PDI ≤1.3 |
| form liquid | form - | form powder or solid | form solid |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| mol wt Mr 600,000-1,000,000 | mol wt Mn ~60,000, Mw 750,000 | mol wt average Mn 2100 | mol wt average Mn 5,000 |
| feature hydrophilic | feature - | feature hydrophilic | feature hydrophilic |
| concentration ~50% in H2O | concentration 50 % (w/v) in H2O | concentration - | concentration - |
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Signal Word
Warning
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Sens. 1
Storage Class
10 - Combustible liquids
WGK
WGK 2
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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What is the Mw, Mn, and dispersity/PDI of this product?
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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?
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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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