lactone colouring matters

例句：

1. 1. The lactone in the compound reacts with water to form a solution.
   该化合物中的缩醛与水反应形成溶液。
2. 2. The lactone dye is used for coloring textiles.
   缩醛染料用于给纺织品上色。
3. 3. The lactone structure of the compound is responsible for its unique properties.
   该化合物的缩醛结构是其独特性质的原因。