Bromothymol Blue
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
(3′,3′′-Dibromothymolsulfonphthalein), C27H28Br2O5S—624.38—Cream-colored powder. Insoluble in water; soluble in alcohol and in solutions of alkali hydroxides. Transition interval: from pH 6.0 to 7.6. Color change: from yellow to blue.
