An organic compound whose carbonyl carbon is bonded to two carbons.

• Class with formula R–C(=O)–R′; excludes aldehydes and carboxylic derivatives.

其羰基碳与两个碳原子相连的有机化合物。

• 通式 R–C(=O)–R′，不包括醛和羧酸衍生物。

Informal: any ketone body produced during fat metabolism, e.g., acetoacetate.

• Water-soluble molecules that rise in ketosis and uncontrolled diabetes.

非正式：脂肪代谢产生的酮体，如乙酰乙酸。

• 在酮症和未控制的糖尿病中升高的水溶性分子。