sulfonephthalein

English

Etymology

From sulfone +‎ phthalein.

Noun

sulfonephthalein (plural sulfonephthaleins)

1. (organic chemistry) Any of many sulfonic acids derived from phthaleins, some of which are important acid-base indicators.

See also

• bromocresol purple
• chlorophenol red
• phenol red
• thymol blue