Acid Fuchsin (For Microscopy) (C.I. No. 42685) / CAS 3244-88-0
Acid Fuchsin, also known as Fuchsin Acid or Magenta Acid, is a microscopy dye used in histological staining. Molecular formula: C20H17N3Na2O9S3.
| Article No. | A-00250 |
|---|---|
| CAS No. | 3244-88-0 |
| Grade | For Microscopy |
| Colour Index | C.I. 42685 |
| Molecular formula | C20H17N3Na2O9S3 |
| Molecular weight | 585.545 |
| Appearance | Dark green powder or olive green crystals with bronze metallic lustre |
| Shelf life | 5 years |
Non-returnable
₹600.00
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Product Details
Acid Fuchsin (C.I. 42685) is a microscopy-grade dye. Its absorption maximum is 540–545 nm, and it is appreciably soluble in water. It is used in histological staining procedures, including trichrome connective-tissue staining methods.
Available pack sizes
| Pack size | SKU | Price (INR) | CAS No. |
|---|---|---|---|
| 25 g | A-00250-25GM | ₹600 | 3244-88-0 |
| 100 g | A-00250-100GM | ₹2,200 | 3244-88-0 |
Prices are from Oxford Lab Fine Chem’s 2025–26 price list; confirm current pricing and availability with the supplier.
Specifications
| Absorption | 540–545 nm |
|---|---|
| Absorptivity (A1%, 1 cm at λmax) | Minimum 800 |
| Loss on drying at 135°C | Maximum 10.0% |
| Solubility in water | Appreciable (>10%) |
| Ratio λmax P ± 15 nm | 1.10–1.26 |
Applications
Used as a microscopy stain in histology and tissue studies, including trichrome methods for visualizing connective tissue components.