carbazole

例句：

1. 1. The compound is used in the production of dyes and pigments.
   这种化合物用于生产染料和颜料。
2. 2. This type of polymer has excellent mechanical properties.
   这种聚合物具有出色的机械性能。
3. 3. The carcinogenicity of this compound has been studied extensively.
   这种化合物的致癌性已经得到了广泛的研究。