Chlorophenol red
Indicator
Reagent
Code: #54693
Alias
Chlorophenol red; 3,3′-dichlorophenolsulfonylphthalein, dichlorophenolsulfonol, o-chlorophenol red
CAS Number
4430-20-0
science Other reagents with same CAS 4430-20-0
blur_circular Chemical Specifications
scatter_plot
Molecular Information
Weight
423.27 g/mol
Formula
C₁₉H₁₂Cl₂O₅S
badge
Registry Numbers
EC Number
224-619-2
MDL Number
MFCD00005877
thermostat
Physical Properties
Melting Point
261 °C
inventory_2
Storage & Handling
Storage
room temperature
description Product Description
Chlorophenol red is commonly used as a pH indicator in various laboratory applications. It is particularly useful in microbiological and biochemical experiments to monitor pH changes in culture media or solutions. The indicator changes color from yellow to purple as the pH shifts from acidic to slightly alkaline, typically in the range of 4.8 to 6.4. This property makes it valuable for assessing the pH of cell cultures, enzyme reactions, and other biological processes. Additionally, it is employed in titration experiments to determine the endpoint of acid-base reactions. Its stability and distinct color transition ensure reliable and accurate pH monitoring in scientific research.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Appearance | Green to red-brown to brown powder |
| Visual Transition Interval | pH 4.8 (yellow) to pH 6.4 (purple) |
| Loss on Drying (110°C) | <=8% |
| UV Lambda max in 0.1 N NaOH | 572-576 nm |
| Solubility | 0.1% in ethanol: Clear brown-yellow to dark orange |
| Infrared Spectrum | Conforms |
shopping_cart Available Sizes & Pricing
Cart
No products
Subtotal:
0.00
Total
0.00
THB
