Congo red indicator
1%(w/v) in water
- Product Code: 157968
CAS:
573-58-0
| Molecular Weight: | 696.66 g./mol | Molecular Formula: | C₃₂H₂₂N₆Na₂O₆S₂ |
|---|---|---|---|
| EC Number: | 209-358-4 | MDL Number: | MFCD00004028 |
| Melting Point: | >360 °C(lit.) | Boiling Point: | |
| Density: | Storage Condition: | Room temperature |
Product Description:
Congo red is widely used as a pH indicator in analytical chemistry, particularly for detecting alkaline conditions. It changes color from blue to red when the pH shifts from acidic to basic, typically around pH 3.0 to 5.0, making it useful in titrations and acid-base experiments.
It is also employed as a biological stain in microscopy, especially for detecting amyloid deposits in tissues. In histology, amyloid proteins stained with Congo red exhibit apple-green birefringence under polarized light, which is a key diagnostic feature for diseases like Alzheimer's, type 2 diabetes, and multiple myeloma.
Additionally, Congo red has been used in industrial applications to detect cellulose materials and in educational labs for demonstrating dialysis and membrane diffusion due to its large molecular size. However, its use is limited in large-scale applications due to environmental concerns and toxicity.
Sizes / Availability / Pricing:
| Size | Availability | Price | Quantity |
|---|---|---|---|
| 500ml | 10-20 days | $140.89 |
+
-
|
Congo red indicator
Congo red is widely used as a pH indicator in analytical chemistry, particularly for detecting alkaline conditions. It changes color from blue to red when the pH shifts from acidic to basic, typically around pH 3.0 to 5.0, making it useful in titrations and acid-base experiments.
It is also employed as a biological stain in microscopy, especially for detecting amyloid deposits in tissues. In histology, amyloid proteins stained with Congo red exhibit apple-green birefringence under polarized light, which is a key diagnostic feature for diseases like Alzheimer's, type 2 diabetes, and multiple myeloma.
Additionally, Congo red has been used in industrial applications to detect cellulose materials and in educational labs for demonstrating dialysis and membrane diffusion due to its large molecular size. However, its use is limited in large-scale applications due to environmental concerns and toxicity.
| Mechanism | - |
| Appearance | - |
| Longevity | - |
| Strength | - |
| Storage | - |
| Shelf Life | - |
| Allergen(s) | - |
| Dosage (Range) | - |
| Recommended Dosage | - |
| Dosage (Per Day) | - |
| Recommended Dosage (Per Day) | - |
| Mix Method | - |
| Heat Resistance | - |
| Stable in pH range | - |
| Solubility | - |
| Product Types | - |
| INCI | - |
Purchase History for
Loading purchase history...
Cart
No products
Subtotal:
$0.00
$0.00
Total :