Tags: Chemical Compound, Chemical Substance.

Bromocresol Purple (BCP) or 5’5-dibromo-o-cresolsulfophthalein is a pH indicator. In its sultone form it has a pKa value of 6.3 and is usually prepared as a 0.04% aqueous solution.

Structure_of_Bromocresol_purple.png
IUPAC name
44'-(11-Dioxido-3H-21-benzoxathiole-33-diyl)- bis(2-bromo-6-methylphenol)

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