Dextran from Leuconostoc mesenteroides, analytical standard, for GPC, Mw 670,000

Code: 31425-100MG-F D2-231

Application

Use of dextrans as long and hydrophilic spacer arms improves the performance of immobilized proteins acting on macromolecules.

General description

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£121.82 100MG
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Application

Use of dextrans as long and hydrophilic spacer arms improves the performance of immobilized proteins acting on macromolecules.

General description

Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, with a linear backbone of α-linked D-glucopyranosyl repeating units. Dextrans are found as bacterial extracellular polysaccharides. They are synthesized from sucrose by Leuconostoc mesenteroides and Lactobacillus brevis. Bacteria employ dextran in biofilm formation or as a protective coating to evade host phagocytes in the case of pathogenic bacteria.Dextran from Leuconostoc mesenteroides (Mw: 670,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).

mol wtMn ~330,000
mol wtMw ~670,000
mol wtMp ~400,000
formatneat
Featured IndustryFood and Beverages
analyte chemical class(es)oligosaccharides
gradeanalytical standard
gradefor GPC
gradeACS reagent, reag. Ph. Eur.
gradepuriss. p.a.
Quality Level100
Quality Level100
formneat
CofAexact values can be taken from the accompanying certificate of analysis
Mw/Mn~2.03
cation tracesNa: ≤50 mg/kg
cation tracesK: ≤50 mg/kg
cation tracesFe: ≤10 mg/kg
cation tracesMg: ≤50 mg/kg
cation tracesZn: ≤10 mg/kg
cation tracesCu: ≤5 mg/kg
cation tracesNi: ≤5 mg/kg
cation tracesPb: ≤10 mg/kg
cation tracesCa: ≤50 mg/kg
assay99.0-101.0%
InChI keyISPYRSDWRDQNSW-UHFFFAOYSA-L
loss10.0-12.0% loss on ignition, 400-500 °C
SMILES stringO.[Mn++].[O-]S([O-])(=O)=O
impurities≤0.0005% KMnO4 red. matter (as O)
InChI1S/Mn.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2
application(s)gel permeation chromatography (GPC): suitable
anion traceschloride (Cl-): ≤10 mg/kg
Cas Number9004-54-0
This product has met the following criteria: