The purity of this Tragacanth gum is not determined.
G1128
Tragacanth
Synonym(s):
Gum tragacanth
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| Size/SKU | Availability | Price |
|---|---|---|
100 g | Check Cart for Availability | $116.00 |
500 g | Available to ship TODAY | $386.00 |
1 kg | Available to ship TODAY | $711.00 |
About This Item
biological source
plant (Astragalus gummifer)
Quality Segment
form
powder
color
beige
solubility
H2O: 20 mg/mL
storage temp.
room temp
General description
Tragacanth is a gum commonly found in the sap of various Middle Eastern legumes. It is commonly used as freezing-embedding medium for tissue preservation.
Application
When mixed with water, tragacanth yields a colloidal hydrosol. The bassorin fraction (which consists of approx. 60-70% of the compound) swells to form a gel. This swelling gives the gum tragacanth the ability to form thick, viscous dispersions and pastes. It is an effictive emulsion stabilizer.
Other Notes
A complex mixture of polysaccharides including tragacanthin and bassorin.
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
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This Item | |||
|---|---|---|---|
| description - | description - | description branched polysaccharide | description - |
| biological source plant (Astragalus gummifer) | biological source plant fluids (Gum karaya) | biological source plant (Acacia) | biological source - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| solubility H2O: 20 mg/mL | solubility - | solubility - | solubility - |
| form powder | form powder | form powder | form powder |
| storage temp. room temp | storage temp. room temp | storage temp. room temp | storage temp. - |
| color beige | color faint yellow to brown | color white to faint beige | color beige |
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Storage Class
11 - Combustible Solids
WGK
WGK 2
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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What is the purity of these product? (Tragacanth gum)
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Helpful?
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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/418/501/product-dating-information-06-25-mk.pdfHelpful?
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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 is the average molecular weight?
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This material is comprised of heterogeneous polysaccharides. The molecular weight has not been determined. Various literature sources suggest a molecular weight of approximately 840 kDa. Please see the link below to review additional information:
https://www.sciencedirect.com/topics/medicine-and-dentistry/gum-tragacanth#:~:text=Tragacanth%20gum%20is%20a%20plant,et%20al.%2C%202003).Note that PubChem indicates a molecular weight of 150.35 g/mol for the monomer as indicated at the link below:
https://pubchem.ncbi.nlm.nih.gov/compound/Gum-tragacanthHelpful?
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