azo group

例句：

1. 1.The chemical reaction between the azo group and the dye is very fast.
   偶氮基团与染料之间的化学反应非常快。
2. 2.The azo group in this compound plays a crucial role in its stability.
   这个化合物中的偶氮基团在稳定性方面起着关键作用。
3. 3. The azo group is responsible for the bright color of the product.
   偶氮基团负责产品鲜艳的颜色。