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Phenol Red (Sulfonphthal) is a pH indicator, red dye, and diagnostic aid for measurement of renal function. It is used also for researches of the gastrointestinal and other systems.
Pack Size | Price | Availability | Quantity |
---|---|---|---|
1 g | $29 | In Stock | |
1 mL x 10 mM (in DMSO) | $30 | In Stock |
Description | Phenol Red (Sulfonphthal) is a pH indicator, red dye, and diagnostic aid for measurement of renal function. It is used also for researches of the gastrointestinal and other systems. |
In vitro | Instructions for use I. Solution preparation 1. Preparation of mother solution: Dissolve Phenol in an appropriate solvent. Phenol is soluble in alkaline solutions, such as sodium hydroxide or sodium carbonate solutions. The commonly used concentration is 5 mg/mL or 20 mg/mL. 2. Preparation of working solution: The commonly used final concentration of Phenol is 15–20 mg/L. Note: Please filter and sterilize: Filter with a 0.22 µm filter membrane to ensure that the solution is sterile. Dispense the solution into a light-proof container and store at 4°C or -80°C. II. Operation steps Indication function: Phenol changes color in the pH range of 6.8–8.2, which can indicate the pH state of the culture medium. 1. Application in pH determination Measurement range: Phenol is suitable for determination of pH 6.5–8.4. 1). Sample preparation: Take 10 mL of the test solution in a colorimetric cup. 2) Add indicator: Add appropriate amount of phenol red solution (e.g. 6 drops) and mix well. 3) Colorimetric determination: Use a colorimeter to measure the absorbance at an appropriate wavelength, or compare with a standard colorimetric card to determine the pH value. |
Alias | Sulphental, Sulfonphthal, Fenolipuna |
Molecular Weight | 354.38 |
Formula | C19H14O5S |
Cas No. | 143-74-8 |
Smiles | OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=C1C=CC=C2)C1=CC=C(O)C=C1 |
Relative Density. | 1.477 g/cm3 |
Storage | keep away from direct sunlight,store under nitrogen | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. | |||||||||||||||||||||||||||||||||||
Solubility Information | DMSO: 50 mg/mL (141.09 mM), Sonication is recommended. ![]() | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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