In organic chemistry, a ketone / ˈ k iː t oʊ n / is an organic compound with the structure R−C(=O)−R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group −C(=O)− (a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' are methyl), with the formula (CH 3) 2 CO ...

Ketones, or ketone bodies, are acids your body makes when it’s using fat instead of glucose for energy. Your body gets most of its energy from glucose, a sugar that mainly comes from carbohydrates in your diet. If you don’t get enough energy from glucose, your body breaks down fats for energy instead.

2025年3月8日 · Ketone, any of a class of organic compounds characterized by the presence of a carbonyl group in which the carbon atom is covalently bonded to an oxygen atom. The remaining two bonds are to other carbon atoms or hydrocarbon radicals. The most important ketone is acetone, a liquid with a sweetish odor.

2022年5月26日 · What Are Ketones, and Why Are They Important? Ketones are chemical substances that develop as the body breaks down fat. A certain level of ketones in the body can be normal. However, having high levels of ketones may cause ketoacidosis, which is a serious complication that can have further effects on health.

单酮和邻二酮等采用官能团类别定名法命名时，将2个连接到羰基上的基团名称作为前缀，依英文字母顺序前后排列，后再以类别名“酮（ketone）”，“二酮（diketone）”等结尾。

2024年12月17日 · Ketones, also known as “ketone bodies,” are energy molecules created by the liver from the breakdown of fats. Your body makes ketones when you don’t have access to carbs or enough glucose stores (glycogen), such as when on a ketogenic diet.

2021年5月25日 · Aldehydes and ketones are two related categories of organic compounds that both contain the carbonyl group, shown below. The difference between aldehydes and ketones is the placement of the carbonyl group within the molecule. An aldehyde is an organic compound in which the carbonyl group is attached to a carbon atom at the end of a carbon chain.

2021年5月22日 · In a ketone, two carbon groups are attached to the carbonyl carbon atom. The following general formulas, in which R represents an alkyl group and Ar stands for an aryl group, represent ketones. In an aldehyde, at least one of the attached groups must be a hydrogen atom.

2022年10月10日 · Learn more about ketone levels, what they mean, and when to test for them. If you have diabetes, you will want to understand the difference between trace, moderate, and high ketone levels and what to do in each circumstance. …

What is a Ketone? Ketones are a common functional group in organic chemistry. Ketones have important physiological properties. As a result, they are a part of several sugars and compounds involved in medicinal use such as cortisone, an anti-inflammatory. One common ketone is acetone (CH 3 COCH 3). Acetone is soluble in water and can dissolve ...