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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31404
Dextran sulfate sodium salt from Leuconostoc spp.
Mr 5,000
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| Rozmiar/SKU | Dostępność | Cena netto |
|---|
Informacje o tej pozycji
biological source
(Leuconostoc spp.)
Quality Segment
form
powder
mol wt
Mr 5,000
composition
Sulfur Content, 16.0-20.0%
loss
≤10% loss on drying
useful pH range
6.0-8.0 (10 g/L)
solubility
H2O: 0.1 g/mL, clear, colorless to slightly yellow, water: 100 g/L at 25 °C (77 °F ), H2O: freely soluble 50 mg/mL, clear
storage temp.
room temp
Application
Biochem/physiol Actions
Preparation Note
Other Notes
1 of 1
Ta pozycja | |||
|---|---|---|---|
| description Mr 5,000 | description Mr ~500,000 | description low sulfate content, Mr ~40,000 | description Molecular Biology, average Mw >500,000 (dextran starting material), contains 0.5-2% phosphate buffer |
| biological source (Leuconostoc spp.) | biological source (Leuconostoc spp.) | biological source (Leuconostoc spp) | biological source synthetic |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 300 |
| solubility water: 100 g/L at 25 °C (77 °F ), H2O: freely soluble 50 mg/mL, clear, H2O: 0.1 g/mL, clear, colorless to slightly yellow | solubility H2O: freely soluble 50 mg/mL, clear | solubility H2O: 100 mg/mL, clear, colorless to faintly greenish-yellow | solubility H2O: 100 mg/mL |
| form powder | form powder | form powder | form powder |
| storage temp. room temp | storage temp. room temp | storage temp. room temp | storage temp. - |
| useful pH range 6.0-8.0 (10 g/L) | useful pH range 6.0-8.0 (10 g/L) | useful pH range 6.0-8 (10 g/L) | useful pH range 6.0-8 (10 g/L) |
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Klasa składowania
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
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 does Mr refer to on the website product page for Product 31404, Dextran sulfate sodium salt from Leuconostoc spp.?
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Mr stands for relative molecular weight, which is the molecular weight calculated by atomic mass.
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How should Dextran sulfate sodium salt from Leuconostoc spp., Product 31404, be stored?
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We would recommend storing this product at room temperature, which is in accordance with our MSDS.
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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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