What is Fuchsin Acid CAS 3244-88-0?
Fuchsin Acid CAS 3244-88-0 is a water-soluble acidic dye belonging to the triphenylmethane series. Commercially supplied as a very dark green crystalline powder, it consists of the sodium salts of the sulfonic acids of basic fuchsin. When dissolved in water, it yields a vibrant red or magenta solution. Renowned for its excellent tissue penetration and distinct chemical reactivity, it serves as a critical component in complex histological stains, bacteriological pH indicators, and specialized industrial dyeing processes.
Specifications
| Item |
Value |
| Appearance |
Very dark green solid / crystalline powder |
| Melting Point |
>250 °C |
| Density |
1.74 g/cm3 (at 20 °C) |
| Storage Conditions |
Room temperature |
| Water Solubility |
14.3 g/100 mL |
| pH Range |
5 (pink) to 8 (yellow) |
Features
- Superior Aqueous Solubility – Dissolves efficiently in water, facilitating consistent and rapid preparation for aqueous staining protocols and industrial dye baths.
- Dynamic pH Sensitivity – Functions as a highly reliable pH indicator (Andrade’s indicator), displaying a sharp visual transition from pink in acidic environments to yellow in alkaline conditions.
- Excellent Biological Binding – Possesses a strong chemical affinity for specific tissue structures and proteins, allowing for precise cellular differentiation in complex histological applications.
Applications
- Biological & Histological Staining – Serves as a vital component in laboratory microtechnique, most notably functioning as the red counterstain in Masson’s Trichrome stain to distinguish muscle fibers from collagen.
- Bacteriological Indicators – Utilized extensively in microbiology to detect acid-forming organisms based on its sharp, pH-dependent color-shifting capabilities.
- Industrial Dyeing & Manufacturing – Applied effectively in the commercial coloring of leather (due to high penetrability), photographic films, specialized inks, crepe tissues, and cosmetic products.
Packaging
Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.