Description
Dextran 500 for biochemistry is a high-molecular-weight polysaccharide reagent with CAS number 9004-54-0 and empirical formula (C₆H₁₀O₅)ₙ. Its molar mass is approximately 500000 g/mol, corresponding to the Dextran 500 designation used in biochemical separation and formulation work. provides a practical quantity for preparing density gradients, viscosity modifiers, stabilising solutions and model macromolecular media in research and method-development laboratories. Biochemists employ this grade in chromatography support studies, cell-related buffer systems and physical–chemical experiments that require a defined dextran fraction. Sourced from manufacturer Carl ROTH, the product carries EG number 232-677-5 for regulatory and catalogue traceability. Consistent polymer identity supports reproducible preparation of working solutions across molecular biology, biophysics and process-development settings. Dextran 500 remains a standard choice whenever protocols specify a ~500000 g/mol dextran for biochemistry without additional functionalisation, offered here in a convenient solid laboratory pack size.
This article is part of Carbohydrates & sugars, in Biochemicals & reagents.
Key features
- Appearance: white to off-white powder
- Appearance of solution (6 % in H2O at 375 nm): ≤0,15
- Molecular mass: 500 000
- pH-value: 4,0-7,0
- Dynamic viscosity (20 °C): 0.56-0.70
- Specific rotation [α] a: +195° to +203°
- Ash: ≤2,0 %
- Loss on drying: ≤10,0 %
- CAS number: 9004-54-0
- Pack sizes: 100 g, 500 g, 10 g
- EG nr.: 232-677-5
- Empirical formula: (C₆H₁₀O₅)ₙ
- Molar mass: ~500000 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Dextran 500, for biochemistry, 10 g, plastic
What is this article?
Dextran 500, for biochemistry, 10 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Carbohydrates & sugars, inside Biochemicals & reagents, in Microbiology lab supplies.
A carbohydrate reagent is a sugar or a derivative, specified by identity, anomer where it matters, and purity. Hydrate and anhydrous forms change the mass. A culture-grade sugar and an analytical standard of the same name are different bottles.
A biochemical is a molecule of life, sold as a reagent: an amino acid, a sugar, a nucleotide, a lipid, an enzyme, an antibiotic. The difference from a bulk chemical is that the use is a biological one, and the impurities that matter are the ones that change that use. An enzyme is specified by activity, not only by mass. An antibiotic is specified by potency. Papers are on PubMed. Structures are on PubChem. Strains and lines that consume these reagents are at ATCC.
Which category should I open next?
The category is Biochemicals & reagents. The sub-category is Carbohydrates & sugars. The catalogue is Microbiology lab supplies.
Shelves beside this one are Amino acids & peptides, Coenzymes, nucleotides & vitamins, Biochemicals (other), Enzymes & substrates, Antibiotics & antimycotics, Lipids, steroids & fatty acids and Detergents & surfactants.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.