Chemical industry: Ethyl 3-hydroxybutyrate, as an important organic synthesis intermediate, has a wide range of applications in the chemical industry. It can be used to prepare other esters, alcohols, acids and other compounds, providing a rich source of raw materials for chemical synthesis. In addition, it can also be used as a solvent or additive in the production of coatings, inks, adhesives, and other products to improve their performance and quality.

In the pharmaceutical field, ethyl 3-hydroxybutyrate has certain pharmacological activity and therefore also has certain application value. Research has shown that it can be used as a raw material or excipient for certain drugs, for the preparation of drugs with anti-inflammatory, antibacterial, analgesic and other effects. In addition, due to its good solubility and stability, ethyl 3-hydroxybutyrate can also be used as a solvent or carrier in pharmaceutical formulations, improving the bioavailability and therapeutic effect of drugs.

Food industry: Ethyl 3-hydroxybutyrate, as a food additive, also has a wide range of applications in the food industry. It can be used as essence and spice to add special flavor and aroma to food. At the same time, it can also serve as a preservative, antioxidant, etc., extending the shelf life of food and maintaining its freshness. However, it should be noted that when using ethyl 3-hydroxybutyrate as a food additive, its dosage and usage conditions should be strictly controlled to ensure the safety and legality of the food