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
L2654
Lipopolysaccharides from Escherichia coli O26:B6
γ-irradiated, BioXtra, suitable for cell culture
Synonym(s):
LPS
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| Size/SKU | Availability | Price |
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About This Item
biological source
Escherichia coli (O26:B6)
Quality Segment
sterility
γ-irradiated
product line
BioXtra
form
lyophilized powder
purified by
gel-filtration chromatography
technique(s)
cell culture | mammalian: suitable
impurities
<5% Protein (Lowry)
solubility
H2O: 5 mg/mL, slightly hazy
storage temp.
2-8°C
Application
Biochem/physiol Actions
Preparation Note
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) - |
| biological source Escherichia coli (O26:B6) | biological source Escherichia coli (O55:B5) | biological source Escherichia coli (O127:B8) | biological source Escherichia coli (O26:B6) |
| solubility H2O: 5 mg/mL, slightly hazy | solubility H2O: 5 mg/mL, faintly hazy to hazy | solubility H2O: 5 mg/mL, slightly hazy | solubility water: 4.90-5.10 mg/mL, cloudy to hazy, colorless to faintly yellow |
| Quality Level 300 | Quality Level 300 | Quality Level 200 | Quality Level 200 |
| 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 |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Oral
Storage Class
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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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
Helpful?
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LPS（Product number:L 2654）はTLR2に結合しますか？
1 answer-
Lipopolysaccarides from Escherichia coli O26:B6 are expected to only interact with Toll-like receptor 4 (TLR4). Similar lipopolysaccharides from Porphyromonas gingivalis have demonstrated the ability to bind with both TLR2 and TLR4. This observation is described more fully in the peer-reviewed publication, "Effects of serotype and species dependency of bacterial lipopolysaccharides in human melanocytes from lightly and darkly-pigmented skin," and in its associated citations. A link to this article from PubMed Central can be found here:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10074968/Please see the link below to review product SMB00610, LPS from Porphyromonas gingivalis"
https://www.sigmaaldrich.com/product/sigma/smb00610Helpful?
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