Bromothymol Blue 是 pH 指示剂，在测定弱酸弱碱时使用，在酸性条件下为黄色，在碱性条件下为蓝色。

Bromothymol Blue is a pH indicator. It is yellow when it is acidic and blue when it is alkaline.

Upon the addition of a Bromothymol Blue solution (0.1%, w/v) to an agar plate, zones surrounding colonies of K. vulgare 07 mutants change their color from blue to yellow because K. vulgare 07 mutants release 2-KLG on agar plates, thereby acidifying surrounding areas around colonies [2].

76-59-5

C27H28Br2O5S

624.38

Bromothymol Blue

H2O:< 0.1 mg/mL (insoluble)
DMSO:90 mg/mL (144.14 mM),Need ultrasonic
Powder: -20°C for 3 years
In solvent: -80°C for 2 years