optical isomer

例句：

1. 1. The compound has two optical isomers that differ in their chemical properties.
   该化合物有两种光学异构体，它们在化学性质上有所不同。
2. 2.The research focused on the optical isomers of a new drug.
   该研究专注于一种新药物的光学异构体。
3. 3. The scientists are studying the optical isomers of the compound to understand its behavior.
   科学家们正在研究这种化合物的光学异构体，以了解其行为。