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Eosin B (Acid Red 91) serves as a versatile dye utilized across various domains. Commonly employed in biological experiments, it aids in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, investigating tissue pathology, and monitoring microorganisms. Its utility extends beyond basic scientific research to include clinical diagnostics and a broad spectrum of applications. Additionally, Eosin B is employed in traditional sectors like textile dyeing and emerging areas such as functional textile processing, food pigments, and dye-sensitized solar cells.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | Inquiry | 7-10 days | 7-10 days | |
| 50 mg | Inquiry | 7-10 days | 7-10 days | |
| 100 mg | Inquiry | 7-10 days | 7-10 days |
| Description | Eosin B (Acid Red 91) serves as a versatile dye utilized across various domains. Commonly employed in biological experiments, it aids in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, investigating tissue pathology, and monitoring microorganisms. Its utility extends beyond basic scientific research to include clinical diagnostics and a broad spectrum of applications. Additionally, Eosin B is employed in traditional sectors like textile dyeing and emerging areas such as functional textile processing, food pigments, and dye-sensitized solar cells. |
| Synonyms | Acid Red 91 |
| Molecular Weight | 624.06 |
| Formula | C20H6Br2N2Na2O9 |
| Cas No. | 548-24-3 |
| Smiles | O=C1OC2(C3=CC=CC=C31)C4=CC([N+]([O-])=O)=C([O-])C(Br)=C4OC5=C(Br)C([O-])=C([N+]([O-])=O)C=C52.[Na+].[Na+] |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
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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