5,5-二甲基-1,3-环己二酮（双甲酮）基本上是一种用于测定醛的高灵敏度和高度特异性的试剂。因为它环保，产量高，并且是一个简单的后处理程序，这是非常有利的。 应用 5,5-二甲基-1,3-环己二酮可用于与乙二醇中的芳香醛进行缩合反应。它也可用于醛的 HPLC 痕量分析。 5,5-dimethyl-1,3-cyclohexanedione (Dimedone) is basically a highly sensitive and very specific reagent used for the determination of aldehydes. It is highly advantageous as it is environment friendly, give high yields and is a simple workup procedure. Application 5,5-dimethyl-1,3-cyclohexanedione may be used in condensation reaction with aromatic aldehyde in ethylene glycol. It may be also be used in trace analysis of aldehydes by HPLC.