Description
Dextran 250 is a biochemistry-grade polysaccharide with CAS number 9004-54-0 and the repeating empirical formula (C₆H₁₀O₅)ₙ. The stated molar mass is approximately 250000 g/mol, identifying this grade within the higher-molecular-weight dextran range used in biochemical and physicochemical work. It is Available from manufacturer Carl ROTH for biochemistry applications, the material supports experiments that require a defined polymeric carbohydrate standard or matrix component. EG number 232-677-5 enables clear substance identification in laboratory inventories and documentation. Typical contexts include viscosity and colloid studies, separation method support and other workflows where a high-molecular-weight dextran is specified. The solid presentation allows accurate weighing and storage under ordinary laboratory practice, while the molecular-mass designation helps match the reagent to protocols that call for Dextran 250 rather than lower- or higher-mass variants.
This article is part of Carbohydrates & sugars, in Biochemicals & reagents.
Key features
- Appearance: white to light yellow powder
- Molecular mass: 225000-275000
- pH-value: 4.5-7.0
- Water: ≤7.0 %
- Ash content: ≤2.0 %
- CAS number: 9004-54-0
- Pack sizes: 100 g, 500 g, 10 g
- EG nr.: 232-677-5
- Empirical formula: (C₆H₁₀O₅)ₙ
- Molar mass: ~250000 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Dextran 250, for biochemistry, 10 g, plastic
What is this article?
Dextran 250, 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.
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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.