Dextran from Leuconostoc mesenteroides

Name: Dextran from <I>Leuconostoc mesenteroides</I>
Brand: SIAL
Price: 3645 MXP

analytical standard, suitable for gel permeation chromatography (GPC), Mw 25,000

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100 MG

MXP 3,645.00

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About This Item

Linear Formula:

(C₆H₁₀O₅)_n

CAS Number:

9004-54-0

UNSPSC Code:

12352201

NACRES:

NA.24

EC Number:

232-677-5

MDL number:

MFCD00130935

Key Documents

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Product Name

Dextran from Leuconostoc mesenteroides, analytical standard, suitable for gel permeation chromatography (GPC), Mw 25,000

SMILES string

O1C(C(C(C(C1CO)O)O)O)OCC2OC(C(C(C2O)O)O)OCC(O)C(O)C(O)C(O)C=O

InChI key

FZWBNHMXJMCXLU-UHFFFAOYSA-N

InChI

1S/C18H32O16/c19-1-5(21)9(23)10(24)6(22)3-31-17-16(30)14(28)12(26)8(34-17)4-32-18-15(29)13(27)11(25)7(2-20)33-18/h1,5-18,20-30H,2-4H2

grade

analytical standard

mol wt

M_n ~20,000
M_p ~20,000
M_w ~25,000

analyte chemical class(es)

oligosaccharides

technique(s)

gel permeation chromatography (GPC): suitable

M_w/M_n

~1.25

application(s)

food and beverages

format

neat

Quality Level

100

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Analytical Chemistry

Carbohydrate Standards

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Show Differences

1 of 4

This Item	D8821	31418	31416
Supelco 31419 Dextran from Leuconostoc mesenteroides	Sigma-Aldrich D8821 Dextran from Leuconostoc mesenteroides	Supelco 31418 Dextran from Leuconostoc mesenteroides	Supelco 31416 Dextran from Leuconostoc mesenteroides
format neat	format -	format neat	format neat
grade analytical standard, for GPC	grade -	grade analytical standard, for GPC	grade analytical standard, for GPC
mol wt M_n ~20,000	mol wt average mol wt 60,000-76,000	mol wt M_n ~8,000, M_p ~10,000, M_w ~12,000	mol wt M_n ~1,000, M_p ~1,100, M_w ~1,300
analyte chemical class(es) oligosaccharides	analyte chemical class(es) -	analyte chemical class(es) oligosaccharides	analyte chemical class(es) oligosaccharides
technique(s) gel permeation chromatography (GPC): suitable	technique(s) -	technique(s) gel permeation chromatography (GPC): suitable	technique(s) gel permeation chromatography (GPC): suitable
M_w/M_n ~1.25	M_w/M_n -	M_w/M_n ~1.50	M_w/M_n ~1.30

Application

Markers-dextran with 25000 Da has been used as standard in gel chromatography analysis to determine fractional composition of protein, carbohydrate, phenolic surface active substances in base wine.

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

General description

Dextran is a D-glucosyl homopolysaccharide which has a-1,6 glucosidic linkages with different branches through α-1,2, α-1,3, and α-1,4 linkages correspondingly classified as group A, B and C. It can be synthesized from sucrose by cell-free filtrate.

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: 25,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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