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Tetrabromophenolphthalein ethyl ester potassium salt is used as reagent for detection of proteins and as indicator for ion-pair extraction titration.
Kyoji Tôei.; Shoji Motomizu.; Tôru Umano. Extractive spectrophotometric determination of non-ionic surfactants in water. Talanta. 1982, 29 (2), 103-106.
Tadao Sakai. Solvent extraction-spectrophotometric determination of berberine and benzethonium in drugs with tetrabromophenolphthalein ethyl ester by batchwise and flow injection methods. Analyst. 1991, 116 (2), 187-190.
Acid-base indicator: pH 3.0-4.2.
Reagent for detection of proteins.
Indicator for ion-pair extraction titration.