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DAF-2 DA (5,6-Diaminofluorescein diacetate) is a cell-permeable fluorescent probe used for detecting nitric oxide (NO), requiring use in a serum-free environment free from phenol red interference. It has an excitation wavelength of 491 nm and an emission wavelength of 513 nm, with a commonly used working concentration of 1–10 μm.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 100 μg | $155 | 35 days | 35 days | |
| 250 μg | $347 | 35 days | 35 days | |
| 500 μg | $656 | 35 days | 35 days | |
| 1 mg | $1,237 | 35 days | 35 days |
| Description | DAF-2 DA (5,6-Diaminofluorescein diacetate) is a cell-permeable fluorescent probe used for detecting nitric oxide (NO), requiring use in a serum-free environment free from phenol red interference. It has an excitation wavelength of 491 nm and an emission wavelength of 513 nm, with a commonly used working concentration of 1–10 μm. |
| In vitro | Steps for assessing total mitochondrial nitric oxide levels: 1. SH-SY5Y cells were seeded in duplicate at a density of 5 × 10^3 cells/well in black 96-well cell culture plates. 2. After gelsemium treatment, cells were incubated with DAF-2 DA (10 μM, 15 minutes) on an orbital shaker at room temperature in the dark. 3. After washing twice with HBSS (Sigma) using a Cytation 3 cell imaging multi-function microplate reader, the formation of a green fluorescent product was detected at 485 nm (excitation)/538 nm (emission). The fluorescence intensity is the total cellular nitric oxide level. [2] |
| Synonyms | DAF-2DA, DAF2DA, DAF 2DA, 5,6-Diaminofluorescein diacetate |
| Molecular Weight | 446.41 |
| Formula | C24H18N2O7 |
| Cas No. | 205391-02-2 |
| Smiles | O=C1OC2(C3=CC=C(OC(=O)C)C=C3OC4=CC(OC(=O)C)=CC=C42)C5=CC(N)=C(N)C=C15 |
| Relative Density. | 1.54g/cm3 |
| 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. |
Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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