1. Fragrances and Flavors: Esters produce pleasant odors and flavors naturally found in many fruits and flowers. They are therefore used as flavor and fragrance ingredients in the food, beverage and perfume industries.
2. Cosmetics and Perfumery: Esters are one of the main ingredients used in cosmetics and perfumes. Different esters are used to improve the texture, texture and odor properties of products.
3. Plastics and Polymer Industry: Esters improve the processability of plastics, increase their durability and improve the properties of thermoplastic materials. This enables products in the plastics industry to be manufactured with improved properties.
4. Food Industry: In the food industry, esters are used as natural or artificial flavor and fragrance agents. They are especially frequently used in the production of fruit flavors and sweeteners.
5. Metal Processing and Lubricants: Esters are used in the metalworking industry in applications such as cooling oils, cutting oils and hydraulic fluids. This improves the performance of metalworking fluids, helping to protect metal surfaces during processing.
6. Textile Chemicals: In the textile industry, esters are used in the production of dyes, inks, coatings and textile auxiliaries. This can improve the color stability, slip resistance and moisture resistance of textiles.
7. Paint and Coatings: In the paint and coatings industry, esters are used to improve important properties such as color stability, durability and adhesion.
8. Ink: Esters are used in the production of printing inks and filler inks. They help control drying speed while improving print quality.
9. Biofuels: Esters are also used in the production of biofuels. One type of biofuel in particular, known as biodiesel, is produced by esterification of oils.

Esters are versatile and important compounds in chemical and industrial applications. Their ability to control odors, flavors and properties allows them to be used in many industries.