variants or phenolsulfonphthalein
: a red crystalline compound C19H14O5S formed by condensation of the anhydride of ortho-sulfobenzoic acid and phenol and used chiefly as a test of kidney function and as an acid-base indicator

called also phenol red

Word History


International Scientific Vocabulary phenol + sulfonephthalein or sulfonphthalein

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Dictionary Entries Near phenolsulfonephthalein

Cite this Entry

“Phenolsulfonephthalein.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2023.

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