Tài lèi yóu běnfēn yǔ línběnèrjiǎsuāngān suōhé ér chéng.
Phthaleins are made by condensing phenols with phthalic anhydride.
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usage
A chemistry term. You'll see it almost only as part of compound names like 酚酞 (phenolphthalein, the classic pink acid-base indicator). The wine-jar radical marks it as a fermentation/chemistry character, used here for organic compounds.
The 酉 radical pictures a wine jar and historically marks fermentation and alcohol; in modern chemistry vocabulary it brands organic-compound characters like this one.
