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Dextran sulfate sodium salt from Leuconostoc spp.

Mr ~20,000

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CAS Number:
MDL number:



mol wt

Mr ~20,000


Sulfur Content, 16.0-20.0%


≤10% loss on drying


H2O: 100 mg/mL, clear, colorless to faintly greenish-yellow

storage temp.

room temp

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General description

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran.


Dextran sulfate is routinely used for the selective precipitation of lipoproteins, probe hybridization membrane-immobilized DNA, the release of DNA from DNA-histone complexes, and the inhibition of RNA binding to ribosomes.

Biochem/physiol Actions

Dextran sulfate can interact and bind to lipids making it useful in protein isolation techniques to remove contaminating lipid molecules.

Preparation Note

Sigma dextrans are derived from Leuconostoc mesenteroides.

Other Notes

To gain a comprehensive understanding of our extensive range of Dextrans for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Additional information about FITC-labelled polysaccarides including FITC-Dextran, FITC-DEAE-dextran (FDD), FITC-carboxymethyl-dextran (FCM-Dextran). This page discusses the impact of weight-average molecular weight on the respective molecule dimensions and other physical properties

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