A white or pale yellow crystalline powder, C20H14O4, used as an acid-base indicator, in making dyes, and in medicine as a laxative.

• 苯酚酞一种白色或淡黄色的晶体粉末，c20h14o4，用作酸性指示剂，用于制染料，并在医学上用作一种轻泻剂