| Alternate Names | 2-Cresolsulfonephthalein sodium salt |
| Application | Cresol red sodium salt is a pH indicator with color changes with pH 0.2 – pH 1.8 and pH 7.1 – 8.8 |
| CAS Number | 62625-29-0 |
| Molecular Weight | 404.41 |
| Molecular Formula | C21H17O5S•Na |
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).
Cresol red sodium salt can be used in many common molecular biology reactions in place of other loading dyes. Cresol red does not inhibit Taq polymerase to the same degree as other common loading dyes. The visual transition interval for Cresol red sodium salt for acidic solutions is pH 0.2 (red) to pH 1.8 (yellow), and for basic solutions is pH 7.2 (yellow) to pH 8.8 (red).
TECHNICAL INFORMATION
| Physical State | Solid |
| Solubility | Soluble in water (1 mg/ml), dilute alcohols, acids , alkalies, and ethanol. |
| Storage | Store at room temperature |
| Melting Point | 250° C (lit.)(dec.) |
| Refractive Index | n20D 1.65 (Predicted) |
SAFETY INFORMATION
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
| WGK Germany | 3 |
| PubChem CID | 6163909 |
| MDL Number | MFCD00001618 |
| EC Number | 263-654-8 |
| SMILES | CC1=CC(=C(C2=CC(=C(C=C2)O)C)C3= CC=CC=C3S(=O)(=O)[O-])C=CC1=O.[Na+] |