548-24-3
548-24-3
Chemical Structure
Eosin B
Synonym(s): Acid Red 91
- CAS No.: 548-24-3
- Formula:C20H6Br2N2Na2O9
- Molecular Weight:624.06
IUPAC Name: sodium 4',5'-dibromo-2',7'-dinitro-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate)
InChIKey: QGAYMQGSQUXCQO-UHFFFAOYSA-L
SMILES: O=C1OC(C(C2=C3Br)=CC([N](=O)=O)=C3O[Na])(C4=CC=CC=C41)C(C(O2)=C5Br)=CC([N](=O)=O)=C5O[Na]
Biological Activity: Eosin B (Acid Red 91) is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
| Cat. No. | Nom du produit | Pureté | Description | Pricing | |||||||||||||||||||
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Eosin B | Eosin B (Acid Red 91) is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells. | |||||||||||||||||||||
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4',5'-Dibromofluorescein | 95.0% | 4',5'-Dibromofluorescein (Eosinic acid) is a fluorescein derivative that can used as a ligand for studying of protein properties by spectral analysis. | ||||||||||||||||||||
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Phloxine B | 96.95% | Phloxine B is a biochemical reagent that can be used as a biological material or organic compound for life science related research. | ||||||||||||||||||||
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5(6)-Carboxyeosin-diacetate | 5(6)-Carboxyeosin-diacetate is a cell membrane-permeable biological dye, primarily used for detecting and modulating intracellular calcium-related processes. 5(6)-Carboxyeosin-diacetate acts as an inhibitor of plasma membrane calcium ATPase (PMCA), affecting intracellular calcium homeostasis by inhibiting calcium efflux. 5(6)-Carboxyeosin-diacetate, in its diacetate form, enters cells and is hydrolyzed by intracellular esterases to remove the acetate groups, releasing active Carboxyeosin, which inhibits plasma membrane Ca2+-ATPase through its ATPase activity, thereby inhibiting Ca2+ efflux and altering intracellular Ca2+ concentration. The fluorescence detection wavelength of 5(6)-Carboxyeosin-diacetate is approximately Ex/Em = 519/542 nm. | |||||||||||||||||||||
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Fluorescein sodium | 95.36% | Fluorescein (Uranine) sodium is widely used as a fluorescent tracer in medicinal and biological applications and tumor infected tissues tracer. Fluorescein (Uranine) sodium is a representative green fluorophore that has been widely used as a scaffold of practically useful green fluorescent probes. | ||||||||||||||||||||
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Erythrosine B (Standard) | ≥98% | Erythrosine B (Standard) (Erythrosin extra bluish (Standard); Tetraiodofluorescein disodium (Standard)) is the analytical standard of Erythrosine B (HY-D0259). This product is intended for research and analytical applications. Erythrosine B (Erythrosin extra bluish; Tetraiodofluorescein) is a visible red dye and insecticide with colorimetric and fluorescent properties. Erythrosine B serves as a membrane-impermeant live-cell dye for Gram-positive and Gram-negative bacteria, primarily staining dead cells with damaged plasma membranes. Erythrosine B exhibits photosensitive larvicidal toxicity against Culex pipiens quinquefasciatus larvae. Erythrosine B is used in live/dead bacterial assays in colorimetric and fluorescent measurements for low-, medium-, and high-throughput experiments, as well as in research related to mosquito-borne diseases and food coloring. | ||||||||||||||||||||
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Eosin Y | 99.42% | Eosin Y (Acid Red 87 free base) is a soluble acid red dye molecule. Eosin Y has a wide application in organic synthesis as a photoredox catalyst. Eosin Y can be used as a component of Eosin-Nigrosin Sperm Viability Staining Solution (HY-DY2022) to assess sperm viability and identify the integrity of the membrane structure and function of inactive sperm. | ||||||||||||||||||||
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Eosin Y disodium | 98% | Eosin Y disodium (Acid Red 87) is a soluble acid red dye molecule. Eosin Y disodium has a wide application in organic synthesis as a photoredox catalyst. Eosin Y disodium can be used as a component of Eosin-Nigrosin Sperm Viability Staining Solution (HY-DY2022) to assess sperm viability and identify the integrity of the membrane structure and function of inactive sperm. | ||||||||||||||||||||
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5-Maleimido-eosin | 98.45% | 5-Maleimido-eosin is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells. | ||||||||||||||||||||
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Eosin 5-isothiocyanate | 98.16% | Eosin 5-isothiocyanate is an orange-red fluorescent and phosphorescent probe that reacts with amino groups. Eosin 5-isothiocyanate also acts as a photocatalyst. Eosin 5-isothiocyanate can be used for protein labeling, investigation of molecular rotational diffusion, and serves as a fluorescence resonance energy transfer (FRET) acceptor. | ||||||||||||||||||||
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Erythrosin Yellowish | Diiodofluorescein disodium salt is a dye. | |||||||||||||||||||||
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