Bromophenol blue is an acid phthalocyanine dye, which is used as a tracer dye for electrophoresis. It is also used as a pH indicator with a pH indication range of 3 to 4.6.
Used as an acid-base indicator, the color changes from yellow to blue-purple from green.
Bromophenol Blue
$36.00
BPB CAS:115-39-9
Molecular formula:C19H10Br4O5S
Mass absorption coefficient: ≥ 115l/cm.g.
Ethanol dissolution test: qualified.
Residue on ignition (calculated as sulfate): ≤0.25.
Price for 100g sample, not include freight.