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Bromophenol blue sodium

CAS: 62625-28-9 F: C19H9Br4NaO5S W: 691.94

Bromophenol blue sodium is a pH indicator. It changes from yellow at pH 3.0 to blue at pH 4.6. Bromophenol blue sodium i
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Bioactivity Bromophenol blue sodium is a pH indicator. It changes from yellow at pH 3.0 to blue at pH 4.6. Bromophenol blue sodium is also used as a tracking dye to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis[1][2].
Name Bromophenol blue sodium
CAS 62625-28-9
Formula C19H9Br4NaO5S
Molar Mass 691.94
Appearance Solid
Transport Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Reference [1]. Shokrollahi A, Zare E. Determination of acidity constants of bromophenol blue and phenol red indicators by solution scanometric method and comparison with spectrophotometric results. Journal of Molecular Liquids, 2016, 219: 1165-1171. [2]. Gish G, Eckstein F. DNA and RNA sequence determination based on phosphorothioate chemistry. Science. 1988 Jun 10;240(4858):1520-2.