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FD40

Fluorescein isothiocyanate–dextran

average mol wt 40,000

Synonym(s):

FITC–Dextran

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Pack SizeSKUAvailabilityPrice
100 mg

Available to ship TODAYfromMILWAUKEE

$174.00
250 mg

Available to ship TODAYfromMILWAUKEE

$383.00
1 g

Available to ship TODAYfromMILWAUKEE

$1,070.00

About This Item

CAS Number:
60842-46-8
UNSPSC Code:
12352201
NACRES:
NA.25
MDL number:
MFCD00131092

$174.00

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biological source

bacterial (Leuconostoc mesenteroides)

Quality Level

100

conjugate

FITC conjugate

form

powder

mol wt

average mol wt 40,000

extent of labeling

0.001-0.020 mol FITC per mol glucose

color

light yellow to dark orange

solubility

H2O: 25 mg/mL

storage temp.

2-8°C

General description

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran. Conflicting data on the branch lengths implies that the average branch length is less than three glucose units. However, other methods indicate branches of greater than 50 glucose units exist. Native dextran has been found to have a molecular weight (MW) in the range of 9 million to 500 million. Lower MW dextrans will exhibit slightly less branching and have a more narrow range of MW distribution. Dextrans with MW greater than 10,000 behave as if they are highly branched. As the MW increases, dextran molecules attain greater symmetry. Dextrans with MW of 2,000 to 10,000, exhibit the properties of an expandable coil. At MW below 2,000, dextran is more rod-like. The MW of dextran is measured by one or more of the following methods: low angle laser light scattering, size exclusion chromatography, copper-complexation and anthrone reagent colorometric reducing-end sugar determination and viscosity.

Application

Dextran labeled with fluorescein isothiocyanate for possible use in perfusion studies in animals.
FITC-dextran is used extensively in microcirculation and cell permeability research utilizing microfluorimetry. FITC-dextran has been used to study plant cell wall porosity and capillary permeability. Plasma proteins have been shown not to bind to FITC-dextran.
FITC-dextran is used in cardiovascular, microcirculation, perfusion, cell monolayer and cell membrane permeability research as fluorescent flux tracer compound that supports the measurement of processes such as blood flow, membrane damage, vascular drainage and renal elimination.[1] Small FITC-dextrans are also used to measure processes such as endocytosis.[2] Fluorescein-dextran, 40 kDa, may be used for the study of cell endocytic activity. FITC-dextran-40 may be used to study endothelial monolayer porosity and apical-basolateral movements within cell layers.[3]

Preparation Note

Sigma typically tests the solubility of FITC dextrans in water at concentrations at or above 25 mg/ml. Solutions should be protected from light. In vivo, FITC-dextran is stable for more than 24 hours.

Other Notes

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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biological source

bacterial (Leuconostoc mesenteroides)

biological source

sugar beets root

biological source

bacterial (Leuconostoc mesenteroides)

biological source

bacterial (Leuconostoc mesenteroides)

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

200

solubility

H2O: 25 mg/mL

solubility

water: 25 mg/mL

solubility

water: 25 mg/mL

solubility

water: 25 mg/mL, clear, yellow

form

powder

form

powder

form

powder

form

powder

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

color

light yellow to dark orange

color

yellow to dark yellow

color

light yellow to dark orange

color

yellow to orange

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pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000433399
0000433399
BCCM8242
BCCL3775
BCCM2645

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Articles

FITC-labelled polysaccharides

Explore FITC-labelled polysaccharides and their properties, including impact of molecular weight on molecule dimensions.

Related Content

Fluorescein Isothiocyanate-Dextran

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran.

Xiuwen Wu et al.
Scientific reports, 7(1), 4364-4364 (2017-07-01)
Sepsis, during which the intestinal epithelial barrier is frequently disrupted, remains a challenging and life-threatening problem in clinical practice. The P2X7 receptor (P2X7R) is a non-selective adenosine triphosphate-gated cation channel present in macrophages that is involved in inflammatory responses. However
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PloS one, 8(12), e81269-e81269 (2013-12-11)
Macrophages are one of the major cell types in innate immunity against microbial infection. It is believed that the expression of proinflammatory genes such as tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, and cyclooxygenase-2 (Cox-2) by macrophages is also crucial
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The milk fat globule membrane (MFGM) contains various bioactive components which have been shown to maintain gut barrier integrity. This study aimed to evaluate the protective effects of MFGM on intestinal barrier function and its possible mechanisms in a rat
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Global Trade Item Number

SKUGTIN
FD40-1G04061833622490
FD40-250MG04061833622506
FD40-100MG04061833622483

Questions

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  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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