Polymers & Resins
REACH
Dextran
CAS Number
9004-54-0
EC Number
232-677-5
What is Dextran?
Dextran (CAS 9004-54-0) is a branched polysaccharide produced by bacterial fermentation in molecular weight-defined grades including Dextran 40 and Dextran 45.
Where is Dextran used?
- Pharmaceutical manufacturing: intravenous plasma expanders and carriers in drug delivery formulations
- Biotech and life science laboratories: size-exclusion chromatography standard
- Scaffold for conjugating proteins, antibodies, and diagnostic reagents
- Bakery: improves dough rheology, crumb structure, and moisture retention
- Cosmetic and topical formulations: humectant and film-forming agent
- It functions as a plasma volume expander and chromatography matrix.
Commercial specifications
- Molecular weight fractions from around 10,000 Da up to several million Da
- Pharmaceutical-grade material to USP and Ph. Eur. specifications for clinical use
- Research-grade fractions with narrow molecular weight distributions
Other Names (Synonyms)
dextrans|Dextran 40|Dextran 45|Dextran 70
What are the physical properties of Dextran?
Melting Point >175 °C (decomp)
Density 1.042 g/cm³
Appearance white crystals or powder
Color White to slightly off-white
Form Solid
Water Solubility Soluble in water, dimethyl sulfoxide, ethylene glycol and glycerol.
Refractive Index 185 ° (C=6, H2O)
pH 2 - 10
Log P -4.259 (est)
Which trade and regulatory codes apply to Dextran?
HS Code 39139000
Storage Class 11 - Combustible Solids
WGK (Germany) 2