Bromophenol Blue, a chemical used as a pH indicator and a tracking dye in gel electrophoresis. As an acid-base indicator, it changes from yellow to blue as the pH increases from 3.0 to 4.6, while as a tracking dye, it helps visualize the movement of DNA, RNA, and proteins through a gel.
Applications
pH indicator:
Acts as a pH indicator, with a color change from yellow at pH 3.0 to blue at pH 4.6.
Tracking dye:
Used in gel electrophoresis to track the progress of molecules as they move through the gel.
Biological stain:
Can be used as a stain for proteins and nucleic acids in biological applications.
Properties
Safety and handling
