1. Others
  2. Biochemical Assay Reagents
  3. FITC-Dextran (MW 70000)

FITC-Dextran (MW 70000) is a compound belonging to the class of fluorescent dyes. It is commonly used in biomedical research as a tracer molecule to label and track cells or other biological matter. FITC-Dextran consists of fluorescein isothiocyanate (FITC) and dextran, a complex carbohydrate derived from starch. The combination of the two creates a stable fluorescent tracer that can be viewed under a microscope or quantified using specialized detection instruments.

For research use only. We do not sell to patients.

CAS No. : 60842-46-8

Size Price Stock Quantity
Free Sample (0.1 - 0.2 mg)   Apply Now  
5 mg In-stock
10 mg In-stock
25 mg In-stock
50 mg In-stock
100 mg   Get quote  
200 mg   Get quote  

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 11 publication(s) in Google Scholar

Top Publications Citing Use of Products

    FITC-Dextran (MW 70000) purchased from MedChemExpress. Usage Cited in: ACS Omega. 2025 Jun 2;10(23):24284-24295.  [Abstract]

    The permeability of FITC-dextran (50 μM, 0.5-2 h) across the skin microtissue on the LS-MPS on day 21.

    FITC-Dextran (MW 70000) purchased from MedChemExpress. Usage Cited in: AMB Express. 2025 Oct 2;15(1):142.  [Abstract]

    Gastrointestinal permeability of the indicated group was assessed by serum FITC-dextran (600 mg/kg, 4 h) concentrations.

    FITC-Dextran (MW 70000) purchased from MedChemExpress. Usage Cited in: AMB Express. 2025 Oct 2;15(1):142.  [Abstract]

    The mice in the EO treatment groups were orally administered EOs (1 µg, 5 µg, or 10 µg) on day 1, and euthanized on day 3 (n = 18 per group, with n = 6 in each group specifically for serum FITC-dextran (600 mg/kg, 4 h) detection).

    FITC-Dextran (MW 70000) purchased from MedChemExpress. Usage Cited in: J Nanobiotechnology. 2024 Aug 12;22(1):479.  [Abstract]

    Murine intestinal permeability was evaluated by oral administration of FITC-dextran (0.6 mg/g,4 h). RFELNs administration significantly decreased serum FITC levels, suggesting that RFELNs ameliorated hypoxia-induced gastrointestinal mucosal barrier disruption.

    FITC-Dextran (MW 70000) purchased from MedChemExpress. Usage Cited in: Exp Eye Res. 2024 Aug 6:110025.  [Abstract]

    Pericyte-endothelial cell cocultures were performed to assess endothelial barrier function, by measuring the passage of 70-kDa FITC–dextran (1 mg/mL, 60 min).
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    FITC-Dextran (MW 70000) is a compound belonging to the class of fluorescent dyes. It is commonly used in biomedical research as a tracer molecule to label and track cells or other biological matter. FITC-Dextran consists of fluorescein isothiocyanate (FITC) and dextran, a complex carbohydrate derived from starch. The combination of the two creates a stable fluorescent tracer that can be viewed under a microscope or quantified using specialized detection instruments.

    In Vitro

    FITC-Dextran (MW 70000) is a fluorescent probe for fluorescein isothiocyanate (FITC) dextran (Ex=495 nm; Em=525 nm). FITC-Dextran (MW 70000) can be used as a marker to reveal heat shock-induced cell damage and to study the early and late stages of apoptosis. FITC-Dextran (MW 70000) can also be used for cell permeability studies, such as blood-brain barrier permeability and determination of the extent of blood-brain barrier disruption[1][2][3]. Storage: protect from light.

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    In Vivo

    Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
    For intestinal barrier function assay[5]
    1. Fast mice for 4 h.
    2. Orally gavage mice with FITC-Dextran MW 70000 (0.6 mg/g).
    3. Measure fluorescence intensity of plasma in 4 h (excitation nm/emission 520 nm).

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Molecular Weight

    70000(Average)

    CAS No.
    Appearance

    Solid

    Color

    Yellow to orange

    SMILES

    [FITC-Dextran (MW 70000)]

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    4°C, protect from light

    *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

    Solvent & Solubility
    In Vitro: 

    H2O : 100 mg/mL (Need ultrasonic)

    • Molarity Calculator

    • Dilution Calculator

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    Mass
    =
    Concentration
    ×
    Volume
    ×
    Molecular Weight *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

    ×
    Volume (start)

    V1

    =
    Concentration (final)

    C2

    ×
    Volume (final)

    V2

    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

    Dosage

    mg/kg

    Animal weight
    (per animal)

    g

    Dosing volume
    (per animal)

    μL

    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Calculation results:
    Working solution concentration: mg/mL
    This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
    Purity & Documentation

    References
    • No file chosen (Maximum size is: 1024 Kb)
    • If you have published this work, please enter the PubMed ID.
    • Your name will appear on the site.
    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

    Your Recently Viewed Products:

    Inquiry Online

    Your information is safe with us. * Required Fields.

    Product Name

     

    Requested Quantity *

    Applicant Name *

     

    Salutation

    Email Address *

     

    Phone Number *

    Department

     

    Organization Name *

    City

    State

    Country or Region *

         

    Remarks

    Bulk Inquiry

    Inquiry Information

    Product Name:
    FITC-Dextran (MW 70000)
    Cat. No.:
    HY-128868E
    Quantity:
    MCE Japan Authorized Agent: