dimetan

例句：

1. 1.This compound is important for the treatment of certain diseases.
   这种化合物对于治疗某些疾病非常重要。
2. 2. The chemical has been used in various applications, including as a solvent and a reagent.
   这种化学物质在各种应用中都有使用，包括作为溶剂和试剂。
3. 3.Dimetane is a colorless liquid that can be used as an additive in paints and coatings.
   二甲胺是一种无色液体，可以用作油漆和涂层的添加剂。