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31430

Dextran

analytical standard, suitable for gel permeation chromatography (GPC), Set Mp 1,000-400,000

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Velikost baleníSkladová položkaDostupnostCena
1 set
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238 100,00 Kč

O této položce

Lineární vzorec:
[C6H10O5]n
Číslo CAS:
UNSPSC Code:
41116107
NACRES:
NA.24
EC Number:
232-677-5
MDL number:

238 100,00 Kč


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grade

analytical standard

Quality Segment

mol wt

Mp 1,000-400,000

analyte chemical class(es)

oligosaccharides

technique(s)

gel permeation chromatography (GPC): suitable

application(s)

food and beverages

format

neat

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

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

InChI key

FZWBNHMXJMCXLU-UHFFFAOYSA-N

General description

Dextran is an exopolysaccharide synthesized by lactic acid bacteria from sucrose. It consists of repeating units of D-glucose with the monomers joined to each other through α-1,6 linkages. In addition, the linear D-glucose chains show branching at frequent intervals, linked by α-1,4, α-1,3, or α-1,2 linkages.

Application

The analytical standards can also be used as follows:
  • High-performance size exclusion chromatography (HPSEC) based determination of the molecular weight of a dextran synthesized by Leuconostoc citreum B-2, isolated from a fermentation product of pineapple
  • Determination of molecular weight of polysaccharides obtained from four Auricularia species by high-performance liquid chromatography using a water-soluble gel column
  • Identification of molecular weight of a water-soluble polysaccharide isolated by anion exchange chromatography from the dried leaves of C. paliurus by gel permeation chromatography (GPC)
  • Gel permeation chromatography (GPC) based molecular weight measurement of a dextran produced by two strains of Leuconostoc mesenteroides
  • Estimation of molecular weight of a water-soluble polysaccharide obtained from thinned-young apple by high-performance size exclusion chromatography (HPSEC)

Other Notes

set contains 10 different dextran standards with 500 mg with Mp ~1,100 (Cat. No. 31416), ~4,400 (Cat. No. 31417), ~10,000 (Cat. No. 31418), ~20,000 (Cat. No. 31419), ~45,000 (Cat. No. 31420),~65,000 (Cat. No. 31421), ~125,000 (Cat. No. 31422), ~195,000 (Cat. No. 31423), ~275,000 (Cat. No. 31424), ~400,000 (Cat. No. 31425); The components can also be ordered separately under the product numbers indicated.

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Tato položka
008920089300895
Dextran analytical standard, suitable for gel permeation chromatography (GPC), Set Mp 1,000-400,000

Supelco

31430

Dextran

Supelco

Supelco

00892

Dextran

Dextran analytical standard, 150,000

Supelco

00893

Dextran

Dextran analytical standard, 410,000

Supelco

00895

Dextran

format

neat

format

-

format

-

format

-

grade

analytical standard

grade

analytical standard

grade

analytical standard

grade

analytical standard

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

technique(s)

gel permeation chromatography (GPC): suitable

technique(s)

gel permeation chromatography (GPC): suitable

technique(s)

gel permeation chromatography (GPC): suitable

technique(s)

gel permeation chromatography (GPC): suitable

analyte chemical class(es)

oligosaccharides

analyte chemical class(es)

oligosaccharides

analyte chemical class(es)

oligosaccharides

analyte chemical class(es)

oligosaccharides

application(s)

food and beverages

application(s)

food and beverages

application(s)

food and beverages

application(s)

food and beverages


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Skladovací třída

11 - Combustible Solids

ppe

Eyeshields, Gloves, type N95 (US)

flash_point_f

Not applicable

flash_point_c

Not applicable



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Osvědčení o analýze (COA)

Lot/Batch Number

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Související obsah

Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, featuring a linear backbone of α-linked d-glucopyranosyl repeating units.

Dextrany jsou polysacharidy s molekulovou hmotností ≥ 1 000 daltonů, které mají lineární páteř z α-vázaných d-glukopyranosylových opakujících se jednotek.


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Globální číslo obchodní položky

Skladová položkaGTIN
31430-1EA04061835560189

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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