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Nile Blue A (Nile blue sulfate) is employed for differentiating melanins and lipofuscins, staining fats, and preparing amperometric glucose sensors.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | $1,520 | 2-4 weeks | 2-4 weeks | |
| 50 mg | $1,980 | 2-4 weeks | 2-4 weeks | |
| 100 mg | $2,500 | 2-4 weeks | 2-4 weeks |
| Description | Nile Blue A (Nile blue sulfate) is employed for differentiating melanins and lipofuscins, staining fats, and preparing amperometric glucose sensors. |
| In vitro | Nile blue A is an effective stain for PHB (polyhydroxybutyrate) granules in bacteria, outperforming Sudan black B in this role. It produces a strong orange fluorescence in poly-p(3-hydroxybutyrate) granules and stains a greater number of PHB granules than Sudan black B, while also being less susceptible to being washed out of the cell during decolorization procedures. Aside from staining polyhydroxyalkanoic acid-accumulating microorganisms or detecting polyhydroxyalkanoic acids in them, Nile blue A can stain Escherichia coli cells lacking detectable polyhydroxyalkanoic acids without interfering with the surface display or specific labeling of peptides. It offers a convenient and cost-effective method for staining E. coli in flow cytometry, serving as an alternative to other fluorescent dyes or intracellular expression markers like green fluorescent protein. Additionally, Nile blue A acts as a powerful photosensitizer in photodynamic therapy, spreading through the body via the bloodstream upon intravenous administration and interacting with various biomolecules in most cells. |
| Synonyms | Nile blue sulfate |
| Molecular Weight | 414.46 |
| Formula | C20H20N3O5S |
| Cas No. | 3625-57-8 |
| Smiles | [O-]S([O-])(=O)=O.CCN(CC)c1ccc2nc3c(cc(N)c4ccccc34)[o+]c2c1 |
| Relative Density. | no data available |
| 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: 150 mg/mL (361.92 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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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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