Thymolphthalein

Thymolphthalein is an organic compound historically used as a pH indicator. It is a weak acid-base indicator that changes color depending on the acidity (pH) of a solution.
Chemical Formula: : C₂₆H₃₀O₄
Appearance: A white to slightly yellowish crystalline powder
Uses:
Pharmaceuticals: In diagnostic tests and medical research, thymolphthalein can be incorporated into test kits or reagents as a pH indicator.
Medicinal Research: Used in medicinal research and pharmaceutical development.
Acid-Base Indicator: Thymolphthalein changes color from colorless in acidic solutions (pH below 8.0) to a bright blue in basic or alkaline solutions (pH above 10.0).
Textile Dyeing and Finishing: Thymolphthalein can be used in textile dyeing and finishing processes as a pH indicator or colorant.