Tashiro indicator is a special pH indicator solution suitable for the pH range from 4.4 to 6.2. Its application is mainly in chemistry, life sciences and medical diagnostics, where it is used to determine and monitor the pH in this specific range.

This solution is characterized by a unique composition based on the dyes methyl blue and methyl red, dissolved in denatured ethanol. These dyes provide a specific and accurate color change depending on the pH of the solution under investigation.

The operation of the Tashiro indicator is based on the chemical properties of the dyes used. When the pH is changed, the protonated or deprotonated form of the dyes changes, resulting in a visible color change.

In medical diagnostics and life science research fields, the Tashiro indicator is widely used to determine pH in biological samples or cultures. Its particular suitability for the pH range mentioned above makes it an important tool in these fields where precision and accuracy are of paramount importance.