Indene is widely used in the production of synthetic resins, particularly in the manufacture of coumarone-indene resins. These resins are valued for their water resistance, adhesive properties, and compatibility with other materials, making them ideal for use in coatings, adhesives, and rubber compounding. Additionally, indene serves as a key intermediate in the synthesis of various chemicals, including pharmaceuticals and fragrances. Its derivatives are also employed in the creation of specialty polymers and plastics, enhancing their performance characteristics. Furthermore, indene is utilized in organic synthesis to produce compounds with applications in agrochemicals and dyes, showcasing its versatility in industrial chemistry.