Key features and details
- pH indicator dye.
- CAS Number: 62625-29-0
- Soluble in water to 1 mg/ml
- Form / State: Solid
- Source: Synthetic
Product nameCresol red sodium salt, pH indicator dye
DescriptionpH indicator dye.
- 2-Cresolsulfonephthalein sodium salt
- o-Cresolsulfonephthalein sodium salt
pH indicator with color changes for acidic solutions of pH 0.2 (red) to pH 1.8 (yellow), and for basic solutions of pH 7.2 (yellow) to pH 8.8 (red). Used in many common molecular biology reactions in place of other loading dyes. It does not inhibit Taq polymerase to the same degree as other common loading dyes.
Storage instructionsStore at Room Temperature. The product can be stored for up to 12 months.
Solubility overviewSoluble in water to 1 mg/ml
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab146320 has not yet been referenced specifically in any publications.