methyl

简明释义

英[ˈmeθɪl]美[ˈmeθəl]

n. [有化] 甲基；木精

英英释义

单词用法

同义词

反义词

例句

1.The invention relates to a method for preparing adefovir dipivoxil dual oxygen methyl pivalate from adefovir.

本发明涉及从阿德福韦制备阿德福韦酯二氧新戊酸双氧甲基酯的方法。

2.So, you already have a hint that methyl groups are never in the middle, they always have to be on the outside.

那么，你已经得到了一个提示，那就是甲基永远都不可能在中间，它们总是在外侧。

3.The invention discloses a new use of methyl liensinine.

本发明披露了甲基莲心碱的新用途。

4.Thiomersal does not contain methyl mercury, which is a naturally-occurring compound and whose toxic effects on humans have been well studied.

硫柳汞不含有甲基汞，后者是一种自然产生的化合物，其对人类的有毒影响已得到充分的研究。

5.Thiomersal, however, contains ethyl mercury, not methyl mercury, and ethyl and methyl mercury are quite different.

然而，硫柳汞中所含的是乙基汞，而非甲基汞，乙基汞和甲基汞有很大区别。

6.Some cases of accidental overdose of methyl salicylate and camphor have been fatal.

意外服药过量的甲基水杨酸和樟脑是致命的。

7.The methyl group is often found in natural products.

在天然产物中，常常可以找到甲基基团。

8.In organic chemistry, a methyl substitution can significantly alter the properties of a molecule.

在有机化学中，甲基取代可以显著改变分子的性质。

9.The presence of a methyl group can increase the lipophilicity of a drug.

一个甲基基团的存在可以增加药物的脂溶性。

10.Researchers are studying how methylation affects gene expression.

研究人员正在研究甲基化如何影响基因表达。

11.The compound contains a methyl group, which is essential for its reactivity.

该化合物含有一个甲基基团，这对其反应性至关重要。

作文

The term methyl refers to a specific functional group in organic chemistry that consists of one carbon atom bonded to three hydrogen atoms. This simple structure, represented as -CH3, plays a crucial role in various chemical reactions and compounds. Understanding the significance of methyl groups is essential for anyone studying organic chemistry or biochemistry. In this essay, I will explore the properties of methyl, its applications, and its impact on biological systems.Firstly, methyl groups are known for their stability and non-polar characteristics. These properties make them hydrophobic, meaning they do not interact well with water. This hydrophobic nature allows methyl groups to influence the solubility of larger molecules. For instance, in the case of lipids, which are essential for cell membranes, the presence of methyl groups contributes to the formation of lipid bilayers. This structural feature is vital for maintaining the integrity and functionality of cells.Moreover, methyl groups are involved in various biochemical processes, particularly in the field of epigenetics. The addition of a methyl group to DNA, a process known as methylation, can regulate gene expression. This modification can silence genes, preventing them from being expressed, which is crucial for normal cellular function and development. Abnormal methylation patterns have been linked to various diseases, including cancer, highlighting the importance of understanding this process.In addition to their biological significance, methyl groups are also commonly found in numerous industrial applications. For example, methylated compounds are used in the production of pharmaceuticals, agrochemicals, and polymers. The versatility of methyl groups allows chemists to design molecules with specific properties, leading to the development of new materials and drugs. One notable example is the use of methyl groups in the synthesis of certain anti-cancer drugs, where they help improve the efficacy and selectivity of the treatment.Furthermore, the study of methyl groups extends beyond organic chemistry into environmental science. For instance, the presence of methyl compounds in the atmosphere can influence climate change. Certain methylated gases, such as methane (CH4), are potent greenhouse gases that contribute to global warming. Understanding the sources and sinks of these gases is critical for developing strategies to mitigate climate change effects.In conclusion, the methyl group is a fundamental component in both organic chemistry and biological systems. Its unique properties and versatile applications make it a significant subject of study across various scientific disciplines. From regulating gene expression to influencing environmental processes, the impact of methyl cannot be overstated. As research continues to uncover the complexities of methyl interactions, we gain deeper insights into the molecular mechanisms that govern life and the environment. Thus, a thorough understanding of methyl and its implications is essential for future scientific advancements.

术语methyl指的是有机化学中一个特定的官能团，由一个碳原子与三个氢原子结合而成。这个简单的结构表示为-CH3，在各种化学反应和化合物中发挥着至关重要的作用。理解methyl基团的重要性对于任何学习有机化学或生物化学的人来说都是至关重要的。在这篇文章中，我将探讨methyl的性质、应用及其对生物系统的影响。首先，methyl基团以其稳定性和非极性特征而闻名。这些特性使它们具有疏水性，意味着它们与水的相互作用不佳。这种疏水性使得methyl基团能够影响较大分子的溶解度。例如，在脂质的情况下，脂质对细胞膜至关重要，methyl基团的存在有助于形成脂质双层。这一结构特征对于维持细胞的完整性和功能至关重要。此外，methyl基团参与多种生化过程，特别是在表观遗传学领域。添加methyl基团到DNA上的过程称为甲基化，可以调节基因表达。这种修饰可以使基因沉默，阻止其表达，这对正常的细胞功能和发育至关重要。异常的methyl化模式与各种疾病（包括癌症）相关，强调了理解这一过程的重要性。除了生物学意义外，methyl基团在许多工业应用中也很常见。例如，甲基化化合物用于药品、农药和聚合物的生产。methyl基团的多功能性使得化学家能够设计具有特定性质的分子，从而开发新材料和药物。一个显著的例子是某些抗癌药物的合成中使用methyl基团，它们有助于提高治疗的有效性和选择性。此外，对methyl基团的研究不仅限于有机化学，还扩展到了环境科学。例如，大气中methyl化合物的存在会影响气候变化。某些methyl化气体，如甲烷（CH4），是强效温室气体，会加剧全球变暖。理解这些气体的来源和汇对制定减缓气候变化影响的策略至关重要。总之，methyl基团是有机化学和生物系统中的基本组成部分。其独特的性质和多样的应用使其成为各科学学科研究的重要主题。从调节基因表达到影响环境过程，methyl的影响不容小觑。随着研究不断揭示methyl相互作用的复杂性，我们对支配生命和环境的分子机制有了更深入的了解。因此，全面理解methyl及其影响对未来科学进步至关重要。