Tetrahydrothiophene-2-carboxylic acid is primarily used as an intermediate in the synthesis of various pharmaceutical compounds. It plays a crucial role in the production of certain drugs, particularly those targeting neurological and cardiovascular conditions. Additionally, it is utilized in the development of agrochemicals, contributing to the creation of pesticides and herbicides. Its unique structure allows it to act as a building block in organic synthesis, enabling the formation of complex molecules with specific biological activities. The compound is also explored in research for its potential applications in material science, particularly in the development of polymers and coatings with specialized properties.