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| Product Name | TRITC-Dextran, 4 kDa |
| Catalog No. | RERE-0137 |
| Description | A 4 kDa tetramethylrhodamine-labelled dextran, the smallest fraction in the series and one that passes through paracellular gaps with ease. It is the tracer of choice for quantifying subtle epithelial and endothelial leak in vitro, where a small probe distinguishes tight-junction loosening that larger dextrans miss. Red fluorescence keeps it compatible with green-channel tracers in stacked permeability panels. |
| Intended Use | Paracellular leak and tight-junction permeability assays with a minimal-size red tracer |
| Principle / Technology | TRITC fluorescence tracks the 4 kDa dextran fraction across cell barriers |
| Sample Type | In vitro epithelial and endothelial barrier models |
| Specificity | Nominal 4 kDa; tetramethylrhodamine-labelled neutral dextran |
| Reaction Conditions / Protocol | Prepare protected from light and add to the barrier assay at the working concentration |
| Storage Conditions | -20°C; protect from light |
| Shelf Life | 36 months |
| Package Specifications | 25 mg; 100 mg; 500 mg |
| Key Features | Smallest series fraction; sensitive to early barrier loosening |
| Readouts / Downstream Assays | Rhodamine-channel fluorescence readout |
For research use only, not for clinical use.
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