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High Purity Acid Red 87 Eosin Y Factory Suppliers in China
Acid Red 87, widely recognized as Eosin Y, is a premium synthetic fluorescent xanthene dye engineered for high-precision biological and industrial applications. Characterized by its distinctive pink-red hue and brominated chemical structure, this acidic dye exhibits exceptional water solubility and a strong affinity for positively charged molecules, making it an indispensable reagent in professional laboratory environments.
Primarily utilized as a cornerstone in histology and hematology, Acid Red 87 serves as a critical counterstain in H&E staining protocols to vividly highlight cytoplasmic structures, collagen, and red blood cells. Beyond its biological utility, its unique light-emission properties under specific wavelengths make it ideal for fluorescence microscopy, while its versatility extends to high-end ink and textile dye applications.
Detailed Parameters
| CAS No. | 17372-87-1 | Molecular Formula | C20H6Br4Na2O5 |
|---|---|---|---|
| Molecular Weight | 691.86 | EINECS No. | 241-409-6 |
| Appearance | Red with blu-ray crystalline powder | Absorbance Max (nm) | 510.0～518.0 |
| Mass-absorption Coefficient | 115.0 min. (L/cm·g) | Water Soluble Test | Pass |
| Loss on Drying | 9.0% max. | Halide (Br) Content | 2.0% max. |
Key Advantages
High Protein Affinity
Exceptional binding capability to cytoplasmic components, ensuring sharp contrast in histological staining.
Rapid Solubility
High water solubility allows for quick preparation of staining solutions without prolonged agitation.
Fluorescent Precision
Optimized for fluorescence microscopy, providing vivid light emission under specific wavelengths.
Vibrant Color Profile
Distinctive red-pink spectrum provides superior visual differentiation for biological markers.
Analytical Stability
Reliable performance as a pH indicator and tracer dye in complex environmental research studies.
Strict Quality Control
Compliant with rigorous purity standards, ensuring consistency across different laboratory batches.
Product Gallery
Management Platforms
Inventory Management
Real-time tracking of chemical stock levels to ensure uninterrupted supply chains.
Quality Assurance
Strict adherence to purity and sensitivity tests for every production lot.
Compliance Monitoring
Updating safety data sheets (SDS) to meet international chemical regulations.
Order Optimization
Streamlined procurement process for pharmaceutical and research intermediates.
Logistics Control
Specialized packaging and shipping for temperature-sensitive chemical products.
R&D Integration
Continuous optimization of molecular structure for enhanced dyeing efficiency.
Investment Return Comparison
| Feature/Metric | Acid Red 87 (Eosin Y) | Standard Azo Dyes |
|---|---|---|
| Protein Binding | Very High (Specific) | Low to Moderate |
| Fluorescence | Strong Emission | Non-Fluorescent |
| Staining Detail | Sub-cellular Precision | General Surface Dyeing |
| Application Scope | Biological / Analytical | Textile / Industrial |
| Chemical Stability | High (Brominated) | Variable |
Frequently Asked Questions
Acid Red 87 is a brominated xanthene dye specialized for biological staining and microscopy due to its fluorescence and protein affinity, whereas Acid Red 33 is an azo dye more commonly used in textiles and cosmetics.
In Hematoxylin and Eosin (H&E) staining, Acid Red 87 acts as the counterstain, binding to cytoplasmic components and collagen to color them red/pink, contrasting with the blue-purple nuclei stained by hematoxylin.
Yes, due to its fluorescent xanthene core, it can emit light under specific wavelengths, making it a highly effective tool for advanced fluorescence imaging in research.
Specialized intermediates are critical in producing pharmaceuticals, electroplating chemicals, and biological stains, ensuring that final products meet strict purity and reactivity standards.
It should be stored in a cool, dry place, protected from strong light and oxidizing agents, to prevent the degradation of its crystalline structure and maintain staining potency.
Yes, in addition to its staining properties, it is frequently employed in research as a pH indicator and as a tracer dye for environmental and chemical studies.
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