Description
Dextran 20 is a biochemistry-oriented dextran with an approximate molar mass of ~20000 g/mol, CAS number 9004-54-0, and EG nr. 232-677-5. Its empirical formula is (C₆H₁₀O₅)ₙ, corresponding to the polymeric anhydroglucose repeat unit of dextran. The combination of nominal molar mass, CAS and EG identifiers, and empirical formula provides a concise specification set for purchasing and laboratory documentation. Dextran reagents of this class are established neutral polysaccharides used across biochemistry workflows that require controlled molecular-weight fractions. Sourced from manufacturer Carl ROTH for biochemistry use, offers a practical laboratory quantity while remaining limited to the physical pack format and chemical identity data provided, without additional performance or purity assertions beyond those stated.
This article is part of Carbohydrates & sugars, in Biochemicals & reagents.
Key features
- Appearance: white to slightly off-white powder
- pH value: 4,5-7,0
- Specific rotation [α] a: ≥ +148°
- Ash: ≤2,0 %
- Loss on drying: ≤7,0 %
- CAS number: 9004-54-0
- Pack sizes: 10 g, 100 g, 500 g
- EG nr.: 232-677-5
- Empirical formula: (C₆H₁₀O₅)ₙ
- Molar mass: ~20000 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Dextran 20, for biochemistry, 10 g, plastic
What is this article?
Dextran 20, 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 Life Science & Microbiology.
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 Life Science & Microbiology.
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.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.