Cresol Red Solution Uses

• Cresol red is used as a tracking dye for DNA/RNA in agarose gel electrophoresis and protein in polyacrylamide gel electrophoresis.

Required components for Cresol Red Solution

The following components are required to prepare 1L of Cresol Red Solution;

Component	Amount	Concentration
sodium salt of cresol red (Aldrich) (mw: 404.41 g/mol)	4000 g	9.891 M

Cresol Red Solution Preparation

1. Prepare 800 mL of distilled water in a suitable container.
2. Add 4000 g of sodium salt of cresol red (Aldrich) to the solution.
3. Add distilled water until volume is 1 L.
4. Store the 10 mM solution at room temperature.

References

• “Cresol Red Solution Preparation.” AAT Bioquest, Inc, 26 May. 2021, https://www.aatbio.com/resources/buffer-preparations-and-recipes/cresol-red-solution.