The preparation and production of this product is considered proprietary.
G1253
Xanthan gum from Xanthomonas campestris
Synonym(s):
Gum xanthan
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100 G
$96.90
500 G
$360.00
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100 G
$96.90
500 G
$360.00
About This Item
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biological source
Xanthomonas campestris
Quality Level
form
powder
color
faint yellow to beige
storage temp.
room temp
InChI
1S/C13H10O/c1-3-7-12-10(5-1)9-11-6-2-4-8-13(11)14-12/h1-8H,9H2
InChI key
GJCOSYZMQJWQCA-UHFFFAOYSA-N
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Application
Xanthan gum is an anionic polysaccharide composed of a β-(1→4)-D-glucopyranose glucan backbone with side chains of (1→3)-α-D-mannopyranose-(2→1)-β-D-glucuronic acid-(4→1)-β-D-mannopyranose on alternating residues. Approximately half of the terminal mannose residues are 4,6-pyruvated while most of the inner mannose residues are 6-acetylated. Its properties make it a useful matrix component for drug delivery systems. It forms stable drug suspensions in aqueous media and soft gels with locust bean gum or guar gum. Xanthan gum mimics the texture of lipids and is used as a control in experiments where signaling pathways initiated by consumption of lipid-containing reagents are investigated in mice.
Other Notes
A polysaccharide containing glucose, mannose, potassium glucuronate, acetate and pyruvate. Forms a hydrophilic colloid.
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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What is the production strain of this product? Xanthomonas campestris ATCC 33913?
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What is the purity level of Xanthan gum from Xanthomonas campestris?
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The purity of this product is not determined.
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What is the degree of pyruvylation and acetylation?
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The extent of pyruvylation and acetylation is not characterized in 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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How can I determine the shelf life / expiration / retest date of this product?
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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/449/386/product-dating-information-mk.pdfHelpful?
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Is xanthan gum suitable for food applications, is food grade?
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This product is not suitable for food applications and is intended for research use only. Currently, a food grade product option is not available.
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Bonjour, Serait-il possible de connaître la masse molaire estimée de Xanthan gum from Xanthomonas campestris s'il vous plaît? Merci, Cordialement.
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Molecular weight has not been determined. However, reported values in the literature suggest a molecular weight greater than 1 million (The Merck Index, 12th Ed., Entry #10191). Other publications may range from 2 million to as high as 50 million.
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What is the number of repeating units for product G1253?
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There is no information available for the number of repeating units.
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Is xanthan gum sterile and suitable for use in cell culture?
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This item is not sterile and has not been tested for use cell culture. At this time, a cell culture tested version of this material is not available.
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What is the molecular weight of the Xanthan gum?
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Molecular weight has not been determined. However, reported values in the literature suggest a molecular weight greater than 1 million (The Merck Index, 12th Ed., Entry# 10191). Other publications may range from 2 million to as high as 50 million.
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