phenolsulfonephthalein
noun
variants or phenolsulfonphthalein
¦⸗ˌ⸗¦⸗ˌ⸗¦⸗(⸗)⸗
: 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
Etymology
International Scientific Vocabulary phenol + sulfonephthalein or sulfonphthalein