Description

Dextran CAS NO 9004-54-0 is a complex, branched polysaccharide composed of glucose molecules, widely valued for its biocompatibility and versatile functional properties. This polymer is critical for applications requiring precise rheological control, plasma volume expansion, and as a molecular weight standard in analytical separations. It is an essential material for manufacturers and researchers in the pharmaceutical, biomedical, food technology, and chromatography sectors.

Application

• Pharmaceutical Excipient & Plasma Volume Expander: Used in intravenous solutions to treat shock or hypovolemia due to its colloidal osmotic effect.
• Biomedical Research & Cell Culture: Serves as a cryoprotectant for cell freezing and as a component in microcarriers for cell attachment and growth.
• Chromatography & Molecular Sieving: Employed in gel filtration (size-exclusion) chromatography media (e.g., Sephadex) for protein purification and molecular weight determination.
• Food Industry: Functions as a thickener, stabilizer, and texturizing agent in various food products.
• Diagnostic Reagents: Used as a stabilizer and viscosity modifier in clinical diagnostic kits and reagents.
• Industrial Applications: Acts as a flocculant in water treatment and a modifier in adhesive and coating formulations.

Basic Information

Product Name	Dextran
CAS No.	9004-54-0
Molecular Formula	(C6H10O5)n
Molecular Weight	Varies by grade (Typically 1,000 - 2,000,000 Da)
Synonyms	Dextran polymer; Macrose; Polyglucin; Gentran; Glucan; (1,6)-α-D-Glucan; Poly-(1,6)-α-D-glucopyranosyl-(1,3)-α-D-glucopyranose; Dextran B; Dextran T; Dextran sulfate sodium (related derivative)
EINECS	232-677-5

Quality Control

Our Dextran is produced and tested under a rigorous quality management system. Depending on the grade, production may adhere to relevant pharmacopeial standards such as USP, EP, or JP. Each batch is characterized for key parameters including molecular weight distribution, intrinsic viscosity, and purity. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to ensure traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (on dried basis)	≥ 95.0%
Molecular Weight (Average)	As per grade (e.g., 40 kDa, 70 kDa, 500 kDa)
Loss on Drying	≤ 7.0 %
Residue on Ignition (Sulfated Ash)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm
Microbial Limits	As per applicable pharmacopeia
pH (5% solution)	5.0 - 7.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.