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
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764965
Polyethylenimine hydrochloride
linear, average Mn 15,000, PDI <1.4
Synonim(y):
Linear PEI HCl salt, Poly(ethylene imine hydrochloride), Poly(ethylene imine) HCl salt
Wybierz wielkość
| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
1 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 789,00 zł |
Informacje o tej pozycji
789,00 zł
Quality Segment
form
solid
mol wt
average Mn 15,000
feature
hydrophilic
mp
276-281 °C (decomposition)
PDI
<1.4
storage temp.
2-8°C
1 of 1
Ta pozycja | |||
|---|---|---|---|
| description linear, average Mn 15,000, PDI <1.4 | description linear, average Mn 10,000, PDI ≤1.5 | description linear, average Mn 4,000, PDI ≤1.3 | description average Mn 10,000, PDI ≤1.3 |
| form solid | form solid | form solid | form solid |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| mp 276-281 °C (decomposition) | mp 276-280 °C (decomposition) | mp 273-278 °C (decomposition) | mp 48-53 °C |
| feature hydrophilic | feature hydrophilic | feature hydrophilic | feature hydrophilic |
| PDI <1.4 | PDI ≤1.5 | PDI ≤1.3 | PDI ≤1.3 |
| mol wt average Mn 15,000 | mol wt average Mn 10,000 | mol wt average Mn 4,000 | mol wt average Mn 10,000 |
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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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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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How should this reagent be resuspended? Is there any other specification datasheet that indicates what and how much should be resuspended? The Specification Sheet does not contain these informations.
1 answer-
Unfortunately, the solubility of this product is not determined. However, other sources note that PEI HCl is soluble in cold or room temperature water, no rate is provided.
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