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Dextran includes Dextran 40, Dextran 70, etc. TNJ Chemical is the largest supplier of Dextran in China.
Specification
Characters A white powder, very soluble in water, very slightly soluble in alcohol
Appearance of solution Clear and colourless
Nitrogenous ≤110ppm
Residual solvents
Ethanol: ≤0.5%
Methanol: ≤0.05%
Other residual solvent: ≤0.5%
Heavy metals ≤10ppm
Loss on drying ≤7.0%
Sulphated ash ≤0.3%
Bacterial endotoxins ≤16IU/g
Microbial contamination
Total viable aerobic ≤100/gApplication
Dextran is a complex, branched glucan (polysaccharide made of many glucose molecules) composed of chains of varying lengths (from 3 to 2000 kilodaltons). It is used medicinally as an antithrombotic (anti-platelet), to reduce blood viscosity, and as a volume expander in anemia.
The straight chain consists of α-1,6 glycosidic linkages between glucose molecules, while branches begin from α-1,3 linkages. (For information on the numbering of carbon atoms in glucose, see the glucose article.) Dextran is synthesized from sucrose by certain lactic-acid bacteria, the best-known being Leuconostoc mesenteroides and Streptococcus mutans. Dental plaque is rich in dextrans. Dextran is also formed by the lactic acid bacterium Lactobacillus brevis to create the crystals of tibicos, a water kefir fermented beverage which supposedly has some health benefits.
Packing
25kg/drum, or as per customer request