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31390

Dextran from Leuconostoc spp.

Mr ~70,000

Synonym(s):

DEXTRAN 70

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About This Item

Linear Formula:
(C6H10O5)n
CAS Number:
9004-54-0
UNSPSC Code:
12352201
NACRES:
NA.25
EC Number:
232-677-5
MDL number:
MFCD00130935
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biological source

(Leuconostoc spp)

Quality Level

200

form

powder

mol wt

Mr ~70,000

loss

≤7% loss on drying

color

white

mp

483  °C ((901 °F ))

solubility

water: 0.75 g/5mL, clear

absorption

≤0.05 at 375 nm in H2O at 10%

storage temp.

room temp

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 extracellular bacterial polymer of D-glucopyranose. It primarily consists of α-(1→6) linkage in the main chain and a variable amount of α-(1→2), α-(1→3), α-(1→4) branched linkages.

Application

Dextran from Leuconostoc spp. has been used:
  • for the isolation of islets from pancreatic tissue by centrifugation
  • as a component of Earle′s bicarbonate buffer for placental perfusion
  • for the isolation of rat brain microvessels

Biochem/physiol Actions

Dextran is a, which is commercially used as a drug, particularly as a blood plasma volume expander. It is used as an adjuvant, emulsifier, carrier, and stabilizer in the food, pharmaceutical, and chemical industries. Sephadex, a cross-linked dextran is broadly used for the separation and purification of protein. In the food industry, dextran found its use as a thickener for jam and ice cream. It inhibits the crystallization of sugar, thereby enhancing moisture retention. This helps in maintaining the flavor and appearance of various food items.

Other Notes

Enhances immunoprecipitation sensitivity[1]
To gain a comprehensive understanding of our extensive range of Dextrans for your research, we encourage you to visit our Carbohydrates Category page.

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Sigma-Aldrich

Sigma-Aldrich

31390

Dextran from Leuconostoc spp.

Dextran from Leuconostoc spp. Mr ~6,000

Sigma-Aldrich

31388

Dextran from Leuconostoc spp.

Dextran from Leuconostoc spp. Mr ~40,000

Sigma-Aldrich

31389

Dextran from Leuconostoc spp.

Sigma-Aldrich

Sigma-Aldrich

31397

Dextran from Leuconostoc mesenteroides

biological source

(Leuconostoc spp)

biological source

(Leuconostoc spp)

biological source

(Leuconostoc spp)

biological source

(Leuconostoc mesenteroides)

solubility

water: 0.75 g/5mL, clear

solubility

water: 1.5 g/10 mL, colorless to faintly yellow

solubility

water: 1.5, clear, colorless

solubility

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

form

powder

form

powder

form

powder

form

powder

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

-

color

white

color

white

color

white

color

white

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Storage Class

11 - Combustible Solids

ppe

Eyeshields, Gloves, type N95 (US)

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP5174
BCCP1199
BCCN8956
BCCN8657
BCCN3766

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Sin-Yu Yang et al.
Transplantation proceedings, 51(5), 1458-1462 (2019-06-04)
Subcutaneous pockets provide an extrahepatic transplant site for islet grafting to treat type 1 diabetes. However, a hypoxic environment may cause central necrosis to islets and lead to graft failure. Our previous studies focused on a pre-treated subcutaneous site with
M F Dumon et al.
Electrophoresis, 11(10), 846-851 (1990-10-01)
A modification of crossed immunoelectrophoresis for the analysis of plasma lipoproteins is described and is called polyacrylamide gel-crossed immunoelectrophoresis. The incorporation of albumin in the first-dimensional gel facilitates the transfer of the larger lipoproteins containing apolipoprotein B from the first-dimensional
Reka Natarajan et al.
Scientific reports, 8(1), 10558-10558 (2018-07-14)
Cerebrovascular damage caused by either exposure to stress or the widely abused drug, methamphetamine (Meth) is known but stress and drug abuse frequently occur in tandem that may impact their individual cerebrovascular effects. This study examined their co-morbid cerebrovascular effects
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Global Trade Item Number

SKUGTIN
31390-100G04061826683972
31390-500G04061826684122
31390-25G04061826684092

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

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  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

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