FITC-Dextran (MW 40000)
Based on 16 publication(s) in Google Scholar
FITC-Dextran (MW 40000) is a fluorescent probe for fluorescein isothiocyanate (FITC) dextran (Ex=495 nm; Em=525 nm). FITC-Dextran (MW 40000) 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 40000) can also be used for cell permeability studies, such as blood-brain barrier permeability and determination of the extent of blood-brain barrier disruption.
For research use only. We do not sell to patients.
- CAS No.: 60842-46-8
- Molecular Weight:40000(Average)
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Publications Citing Use of MedChemExpress (MCE) FITC-Dextran (MW 40000)
More- Adv Sci (Weinh). 2025 Aug;12(30):e00461. [Abstract]
- Biomaterials. 2025 Sep 17:326:123723. [Abstract]
- J Control Release. 2024 Nov:375:698-711. [Abstract]
- Engineering. 2026 Jan 21.
- Phytomedicine. 2024 Dec:135:156063. [Abstract]
- Int J Biol Macromol. 2026 May 8:152476. [Abstract]
- Int J Biol Macromol. 2025 Dec 31.
- Cell Rep. 2026 Apr 8;45(4):117252. [Abstract]
- Anal Chem. 2025 Apr 8. [Abstract]
- J Agric Food Chem. 2026 Mar 18;74(10):8671-8686. [Abstract]
- Food Biosci. 2025 Aug 30;72:107512.
- J Cell Biol. 2025 Oct 6;224(10):e202503166. [Abstract]
- Int Immunopharmacol. 2026 Jun 15:179:116637. [Abstract]
- Sci Rep. 2023 Aug 14;13(1):13238. [Abstract]
- SSRN. 2026 Apr 27.
- SSRN. 2025 May 17.
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Bio/Physico-chemical Assay
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Cell Imaging/Staining
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Flow Cytometry
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2D/3D Cell Culture and Differentiation
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In Vivo Imaging
Biological Activity
Guide (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
Labeling of cells[1]:
For use with apoptotic cells
1. Incubate cells at 43.5°C for 1 hour and at 37°C for 8 hours to induce apoptosis.
2. Suspend the cells in 100 μL of medium, and mix in Q-prep tubes with 10 μL of propidium iodide (PI), 10 μL of FITC-Dextran (MW 40000) (the final concentration of PI and FITC-Dextran (MW 40000) is 7.5 μM and 1.13 μM, respectively).
3. Incubate cells for 25 min at room temperature in the dark.
4. Take the labeled cells with 3 mL of medium and centrifuge for 10 min at 500 g.
5. Take centrifuged cells with 1 mL of medium and use flow cytometry or fluorescence microscopy analyze (PI: Ex=500 nm, Em=600 nm; FITC-Dextran (MW 40000): Ex=495 nm, Em=525 nm).
Paracellular permeability measurement[4]
1. Add FITC-dextran (0.1 mg/mL) to the basal media in the transwell chamber.
2. Collect media from the transwell insert after 15 min.
3. Measure the fluorescence signal (Ex=485 nm, Em=538 nm).
4. Calculate FITC-dextran concentration based on fluorescence intensity.
5. Calculate permeability.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
For intestinal barrier function assay[5]
1. Fast mice for 4 h.
2. Orally gavage mice with FITC-Dextran MW 40000 (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.
525
488
Chemical Information
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CAS No. 60842-46-8
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Appearance Solid
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Molecular Weight 40000(Average)
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Color Yellow to orange
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SMILES
[FITC-Dextran (MW 40000)]
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Publications (16)
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Journal Impact Factor
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Most Recent
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Adv Sci (Weinh)
ACSS2-Mediated Histone H4 Lysine 12 Crotonylation (H4K12cr) Alleviates Colitis via Enhancing Transcription of CLDN7. [Abstract]2025 Aug;12(30):e00461. PMID: 40650658
FITC-Dextran (MW 40000) purchased from MedChemExpress. Usage Cited in: Adv Sci (Weinh). 2025 Aug;12(30):e00461. [Abstract]
The plasma FD4 level in Acss2CKO and Acss2fl/fl mice (n = 7). For intestinal permeability assessment, mice were fasted for 8 h, followed by oral administration of FITC‑Dextran (MW 40000, 0.6 mg/g body weight). Four hours after gavage, mice were sacrificed, and plasma samples were collected for fluorescence intensity measurement at 490 nm. A standard curve of FD40000 was used to calculate the plasma concentration. Intestinal permeability was obviously impaired in Acss2CKO mice, as determined by FD4 (FITC‑Dextran, MW 40000) gavage.
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Biomaterials
Fully synthetic nanofibrillar hydrogel for the growth and enzyme-free release of patient-derived ovarian tumor organoids. [Abstract]2025 Sep 17:326:123723. PMID: 40976136
FITC-Dextran (MW 40000) purchased from MedChemExpress. Usage Cited in: Biomaterials. 2025 Sep 17:326:123723. [Abstract]
The time-dependent variations of normalized fluorescence of FITC-Dextran (40, 70, 150 kDa; 0.5 mg/mL) and FITC-BSA in TNHs with Cp of 70 mg/mL. The inset shows confocal microscopic images of TNHs containing FITC-BSA at different time points after the photo-bleaching in FRAP experiments. The Cp is 70 mg/mL. Scale bar, 50 μm.
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J Control Release
An inhalable nanoparticle enabling virulence factor elimination and antibiotics delivery for pneumococcal pneumonia therapy. [Abstract]2024 Nov:375:698-711. PMID: 39313100
FITC-Dextran (MW 40000) purchased from MedChemExpress. Usage Cited in: J Control Release. 2024 Nov:375:698-711. [Abstract]
Representative images of fluorescein isothiocyanate-conjugated dextran (FITC-Dextran (MW 40000), 100 μg; i.v.; single dose) distribution in normal and infected lung tissues with different treatments. Scale bar: 50 μm.
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Phytomedicine
Ginsenoside Rg2 alleviates astrocyte inflammation and ameliorates the permeability of the Alzheimer's disease related blood-brain barrier. [Abstract]2024 Dec:135:156063. PMID: 39305744 -
Int J Biol Macromol
Hemin activates interleukin-17 signaling and CCAAT/enhancer-binding protein beta to promote neuroinflammation and blood-brain barrier disruption. [Abstract]2026 May 8:152476. PMID: 42107562 -
FITC-Dextran (MW 40000) purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Dec 31.
The phagocytic activity was analyzed using FITC-Dextran (MW 40000) (1 mg/mL; 30 min) by flow cytometry. The values are presented as mean ± SD (n = 3). Significant differences with the control group (Ctrl) were designated as ⁎⁎⁎P < 0.001. The figure shown is representative of three independent experiments.
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Cell Rep
Advanced glycation end products promote Porphyromonas gingivalis dissemination via an ROS-dependent, inflammation-independent mechanism. [Abstract]2026 Apr 8;45(4):117252. PMID: 41955095 -
Anal Chem
Biomimetic Microparticles with Myocardial and Endocardial Integration for Drug Toxicity Studies. [Abstract]2025 Apr 8. PMID: 40198907 -
J Agric Food Chem
Zearalenone Disrupts the Placental Barrier via Integrated Stress Response Activation in Mice and Human Trophoblast Cells. [Abstract]2026 Mar 18;74(10):8671-8686. PMID: 41780030 -
FITC-Dextran (MW 40000) purchased from MedChemExpress. Usage Cited in: Food Biosci. 2025 Aug 30;72:107512.
FITC-Dextran (MW 40000) (1 mg/mL; 6 h) test results of the fluorescence intensity of the solution under the Caco-2 cell barrier. The experiment was repeated six times, n = 6; with “∗” representing P < 0.05; P < 0.05 is considered to indicate a statistically significant difference.
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J Cell Biol
2025 Oct 6;224(10):e202503166. PMID: 40923996 -
Int Immunopharmacol
EDIL3 regulates caveolin-1-dependent endothelial permeability in subchondral bone during osteoarthritis. [Abstract]2026 Jun 15:179:116637. PMID: 41966780 -
Sci Rep
2023 Aug 14;13(1):13238. PMID: 37580372 -
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Solvent & Solubility
H2O : 50 mg/mL (Need ultrasonic)
Purity & Documentation
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Data Sheet (281 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[2]. Natarajan R, et al. Fluorescein Isothiocyanate (FITC)-Dextran Extravasation as a Measure of Blood-Brain Barrier Permeability. Curr Protoc Neurosci. 2017 Apr 10;79:9.58.1-9.58.15. [Content Brief]
[3]. Eriksson I, et al. Analysis of Lysosomal pH by Flow Cytometry Using FITC-Dextran Loaded Cells. Methods Mol Biol. 2017;1594:179-189. [Content Brief]
[4]. Okabayashi K, et al. Cdc42 activates paracellular transport in polarised submandibular gland cells. Arch Oral Biol. 2021 Dec;132:105276. [Content Brief]
[5]. Yu W, et al. ACE2 contributes to the maintenance of mouse epithelial barrier function. Biochem Biophys Res Commun. 2020 Dec 17;533(4):1276-1282. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)