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
L4130
Lipopolysaccharides from Escherichia coli O111:B4
purified by trichloroacetic acid extraction
Synonyme(s) :
LPS
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| À vous/Référence | Disponibilité | Prix |
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A propos de cet article
biological source
Escherichia coli (O111:B4)
Quality Segment
form
lyophilized powder
purified by
trichloroacetic acid extraction
impurities
1-10% Protein (Lowry)
color
white to light yellow
solubility
water: soluble
shipped in
ambient
storage temp.
2-8°C
General description
Application
Biochem/physiol Actions
Preparation Note
Other Notes
1 of 1
Cet article | |||
|---|---|---|---|
| biological source Escherichia coli (O111:B4) | biological source Escherichia coli (O111:B4) | biological source Escherichia coli (O55:B5) | biological source Escherichia coli (O26:B6) |
| Quality Level 200 | Quality Level 300 | Quality Level 200 | Quality Level 200 |
| solubility water: soluble | solubility water: soluble | solubility water: soluble | solubility water: soluble |
| form lyophilized powder | form lyophilized powder | form lyophilized powder | form lyophilized powder |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| impurities 1-10% Protein (Lowry) | impurities <1% Protein | impurities 1-10% Protein (Lowry) | impurities 1-10% Protein (Lowry) |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Oral
Classe de stockage
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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Hi, The LPS (L4130) product data sheet does not include at what temperature it should be stored after dissolving with water or PBS. Can you help me with this issue, please?
1 answer-
Please see the following link describing our LPS products: https://www.sigmaaldrich.com/technical-documents/protocol/clinical-testing-and-diagnostics-manufacturing/bacteriology/lipopolysaccharides
Solutions at 1 mg/mL in buffer or culture medium are stable for approximately one month at 2-8 °C. For long term storage, frozen aliquots are stable up to 2 years. Avoid repeated freeze/thaw cycles. Solutions should be stored in silanized containers as LPS can bind to plastics and certain types of glass, particularly at concentrations of <0.1 mg/mL. If the LPS concentration is >1 mg/mL, adsorption to the sides of the vial is negligible. If glass containers are used, solutions should be vortexed for at least 30 minutes to redissolve any adsorbed product.
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