propynal

例句：

1. 1. The chemical was used as a solvent for many organic reactions.
   这种化学物质被用作许多有机反应的溶剂。
2. 2.The propynal was added to the mixture to speed up the reaction.
   将丙酮添加到混合物中以加速反应。
3. 3. The propynal was used in the production of plastics and other synthetic materials.
   丙酮用于生产塑料和其他合成材料。