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Bromothymol blue pH indicator dye
Bromothymol Blue Sodium Salt
 
Catalog Number: ASC-1003
CAS Number: 34722-90-2
MW: 614.30 gr/mol
MF: C27H27Br2NaO5
 
In microbial culture media, bromothymol blue sodium salt is an essential pH indicator that gives an indication of how acidic or alkaline the surrounding solution is.
In analytical chemistry, this dye is used for detecting the presence of proteins by binding to phosphatase enzyme. A blue complex is released, signifying the presence of proteins, when the phosphatase enzyme cleaves the bonds between dye and protein, so a blue complex is released that can be seen.

Bromothymol Blue Sodium Salt

PriceFrom AU$45.00
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  • Cat. Number ASC-1003
    CAS Number 34722-90-2
    MDL Number MFCD00077263
    Pubchem 310269017
    Molecular Weight 614.30 gr/mol
    Molecular Formula C27H27Br2NaO5
    Storage Temperature / Condition 20 °C / Keep away from oxidizing agents.
    Form and Color Powder / Green to orange to brown to black powder
    Solution Appearance 0.1 % in water, clear
    Dye Content ≥ 90 %
    pH Transition Range 5.8 (yellow) to 7.6 (blue)
    Wavelength of Maximum Absorption 615 – 618 nm
    Absorptivity (1% / 1cm) ≥ 450 (at λ max)
    Loss on Drying ≤ 5 %

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