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triphenylmethanol

n. (context chemistry English) An aromatic organic compound, a white crystalline solid that produces an intense yellow colour in strongly acidic solutions.

Wikipedia
Triphenylmethanol

Triphenylmethanol (also known as triphenylcarbinol, TrOH) is an organic compound. It is a white crystalline solid that is insoluble in water and petroleum ether, but well soluble in ethanol, diethyl ether, and benzene. In strongly acidic solutions, it produces an intensely yellow color, due to the formation of a stable "trityl" carbocation. Many derivatives of triphenylmethanol are important dyes.