: In its pure form, it typically appears as a fine, pinkish-to-brownish crystalline powder. The Color Change Spectrum
This sensitivity around pH 7 makes it particularly useful for monitoring physiological processes where pH remains close to neutral, such as in enzyme activity studies . Safety Data Sheet: Bromothymol blue - Carl ROTH bromothymol blue
: It consists of three aromatic benzene rings, featuring two bromine atoms, hydroxyl groups, and a central sulfonphthalein core. : In its pure form, it typically appears
The most notable feature of bromothymol blue is its ability to change color based on the acidity or alkalinity of a solution. Its transition range is approximately . Solution Type Observed Color Below 6.0 Yellow Around 7.0 Green Above 7.6 Blue : In its pure form