Fig. 1 · Structure
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Cresol red, 97%
Indicator
Cresol red is an anionic dye primarily utilized as a pH indicator, exhibiting distinct color transitions from orange at pH 1.8 to yellow at pH 2.0, and further shifting to yellow and ultimately purple between pH 7.0 and pH 8.8. This compound serves essential roles in various biochemical assays and laboratory applications, facilitating the determination of acidity and alkalinity in diverse solutions. Its reliable performance makes it a valuable reagent for researchers engaged in studies involving pH-sensitive environments.
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Specifications
| Manufacturer | Adooq Bioscience |
|---|---|
| CAS Number | 1733-12-6 |
| Applications | Indicator |
| Formula | C21H18O5S |
| Molecular Weight | 382.43 |
| SMILES | O=S1(OC(C2=CC=C(C(C)=C2)O)(C3=CC=CC=C31)C4=CC=C(C(C)=C4)O)=O |
Storage & Solubility
In Vitro Solubility
Reported Solubility
No reported solubility data are available for this product.
Preparing Stock Solutions
| Concentration | |
|---|---|
Values use four significant digits. Prepare to the final solution volume; this is not the volume of solvent to add.
Stock preparation is unavailable for this product molecular weight.
Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.
Storage
Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.