Bromocresol purple is a dye of the triphenylmethane family and a pH indicator. It is colored yellow below pH 5.2, and violet above pH 6.8. In its cyclic sulfonate ester form, it has a pKₐ value of 6.3, and is usually prepared as a 0.04% aqueous solution.Chemical formula: C21H16Br2O5S
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Bromocresol Purple AR 25g
Chem Lab Supplies Bromocresol Green AR is a dye of the triphenylmethane family.It is used as a pH indicator in applications such as growth mediums for microorganisms .The most common use of Bromocresol green is to measure serum albumin concentration within mammalian blood samples in possible cases of renal failure.
Formula: C21H14Br4O5S
R623,23
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