dithiane

例句：

1. 1. The compound has a distinctive blue color due to its dithiane structure.
   这种化合物因其二噻烷结构而呈现出独特的蓝色。
2. 2. Dithiane is used in the synthesis of various organic compounds.
   二噻烷用于合成各种有机化合物。
3. 3. The dithiane ring is a common feature in many biological molecules.
   二噻烷环是许多生物分子中常见的特征。