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PEG的存在可以增加化合物的溶解性，减少其在体内的免疫反应，并延长其在体内的循环时间。 Carboxylic acid：即羧基，是一种具有反应活性的官能团。羧基可以与多种化合物发生反应，如与胺类化合物发生酰胺化反应，与醇类化合物发生酯化反应等，从而实现对 ...

Carboxylic acids can carry out the same reactions as other acids, for example the reactions with metals and metal carbonate. Carboxylic acids are weak acids, and will react more slowly than other ...

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Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States ...

What Is Alpha-Lipoic Acid? Alpha-lipoic acid (ALA) is an antioxidant that your body makes. You also get it from foods such as broccoli, carrots, potatoes, and red meat. ALA is produced in small ...

High stomach acid symptoms can include belly pain, bloating, nausea, and heartburn. High stomach acid can be caused by bacterial infections, stress, and rebound effects from medication withdrawal.

In this context, differently substituted 2-fluoro-3-mercaptopropionic acids have been synthesized in good isolated yields using thiophenols and fluorine-containing α,β-unsaturated alkenes. In addition ...

You may be able to treat hyperpigmentation with over-the-counter (OTC) skin acids and retinoids. A dermatologist can also perform procedures that may help reduce its appearance. If you have ...