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XTT is a cell-impermeable, negatively charged tetrazolium dye that produces a water-soluble formazan when reduced at the cell surface by cellular-derived NADH and an electron mediator [1,2]. It is frequently used in colorimetric assays to measure cell proliferation, cytotoxicity, and apoptosis [3].

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 25 mg | $198 | 35 days | |
| 50 mg | $359 | 35 days | |
| 100 mg | $562 | 35 days | |
| 250 mg | $1,200 | 35 days |
| Description | XTT is a cell-impermeable, negatively charged tetrazolium dye that produces a water-soluble formazan when reduced at the cell surface by cellular-derived NADH and an electron mediator [1,2]. It is frequently used in colorimetric assays to measure cell proliferation, cytotoxicity, and apoptosis [3]. |
| Formula | C22H16N7NaO13S2 xH2O |
| Cas No. | 413585-64-5 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
| Solubility Information | DMSO: 3.3 mg/mL, Sonication is recommended. PBS (pH 7.2): 3.3 mg/mL, Sonication is recommended. DMF: 0.5 mg/mL, Sonication is recommended. |

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