bromcresol green

bromcresol green
A substituted triphenylmethane dye (pKa 4.7), sparingly soluble in water but readily soluble in alcohol, diethyl ether, and ethyl acetate; used as an indicator of pH (yellow at pH 3.8, blue-green at pH 5.4).

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an indicator, tetrabromo-m-cresolsulfonphthalein, used in the determination of hydrogen ion concentration, being yellow at pH 4.0 and blue at pH 5.4. Written also bromocresol g.

Medical dictionary. 2011.

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