CAS · 477-73-6
Product Overview
Basic Red 2 is a high-purity dyes-pigments supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| REDOX sensitivity | qualified |
|---|---|
| Dissolution test | qualified |
| Burning residue (in sulfate) | 1% max |
| Drying weight loss | 5% max |
| Iron | 0.002% max |
| Zinc | 0.001% max |
| Organic impurities | qualified |
Applications
1. Biological & Microbiological Staining
Microscopy & Histology: Used as a counterstain in Gram staining to color Gram-negative bacteria red/pink while Gram-positive organisms retain the primary stain.
Specialized Tissue Staining: Applied in endospore staining, cartilage staining, and mucin detection. Also used in chromosomal staining protocols and in palaeobotanical studies to highlight plant structures.
Contrast Enhancement: Adds visual distinction to nuclei, mast cell granules, and other tissue components under light microscopy.
2. Analytical & Chemical Uses
Serves as a redox indicator in oxidation–reduction reactions.
Used in laboratory protocols where color change assists in endpoint detection.
3. Industrial & Material Applications
Functions as a photosensitizer in solar cells and photopolymerization processes.
Acts as a charge-control agent in electrophotography toners.
Used in optical filter manufacturing and in affinity dye applications for nucleic acid separation.
4. Forensic Applications
Employed to visualize latent fingerprints after cyanoacrylate fuming, enhancing ridge details for identification.
5. Textile & Paper Dyeing
Used to dye acrylic, linen, silk, and other natural fibers.
Applied in the papermaking industry for coloration purposes.
Benefits
High Visual Contrast in Microscopy
Produces bright, vivid red staining for bacteria, cell structures, and tissues, improving observation and differentiation under a microscope.
Versatility Across Fields
Can be used in biological research, industrial manufacturing, analytical chemistry, and forensic science, making it a multi-purpose compound.
Optical and Electrochemical Properties
Its photosensitivity and charge-controlling capabilities make it valuable in photochemical and electrostatographic applications.
Forensic Reliability
Enhances the visibility of latent fingerprints, providing a non-destructive method for forensic examination.
Ease of Use and Compatibility
Soluble in water and ethanol, stable in solution, and compatible with standard laboratory and industrial procedures.
Conclusion
Basic Red 2 is a multifunctional dye recognized for its vivid coloration, stable performance, and broad range of uses. It plays a critical role in microbiology as a counterstain, in analytical chemistry as a redox indicator, in industry as a photosensitizer and charge-control agent, in forensics for fingerprint development, and in textiles and papermaking for coloration. Its combination of strong staining ability, versatility, and ease of handling ensures it remains a valuable tool in both scientific and industrial contexts.
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