phenanthrahydroquinone

例句：

1. 1. This compound is used in the production of phenanthrahydroquinone.
   这种化合物用于生产酚酞。
2. 2. Phenanthrahydroquinone is a coloring agent widely used in paints and plastics.
   酚酞是一种广泛用于油漆和塑料的着色剂。
3. 3. The chemical was discovered by accident during the synthesis of phenanthrahydroquinone.
   这种化学物质是在合成酚酞的过程中偶然发现的。