Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of antihypertensive and antiviral drugs. It serves as a building block in organic synthesis due to the reactivity of the aldehyde group and the chlorine substituent, enabling cross-coupling reactions and heterocycle formation. Commonly employed in the development of agrochemicals, including herbicides and fungicides, thanks to its thiophene core which enhances biological activity. Also utilized in the preparation of conjugated polymers for organic electronics, where it contributes to tuning electronic properties in semiconducting materials.