Description
Dextran 40 is a biochemistry-grade polysaccharide intended for laboratory and research use. It is identified by CAS 9004-54-0 and EG nr. 232-677-5, with the repeating empirical formula (C₆H₁₀O₅)ₙ and a molar mass of approximately 40 000 g/mol. Dextrans of this molecular-weight range are commonly employed in biochemical separations, solution viscosity studies, macromolecular standards, and related experimental systems. Clear identity parameters and a defined nominal molar mass help laboratories specify the polymer consistently across protocols. Suitable for biochemistry environments that require a well-characterised dextran fraction, this grade supports reproducible preparation of working solutions without extraneous additives or unverified performance claims.
This article is part of Carbohydrates & sugars, in Biochemicals & reagents.
Key features
- Appearance: white to off-white powder
- Molecular mass: 35000-45000
- pH value (10 % solution): 4.5-7.0
- Specific rotation [α]20D (2 % in H2O): +195° to +201°
- Loss on drying: ≤7.0 %
- CAS number: 9004-54-0
- Pack sizes: 10 g, 100 g, 250 g, 500 g
- EG nr.: 232-677-5
- Empirical formula: (C₆H₁₀O₅)ₙ
- Molar mass: ~40 000 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Dextran 40, for biochemistry, 10 g, plastic
What is this article?
Dextran 40, 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.
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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.
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