Thiazole-2-carboxylic acid is widely used in the pharmaceutical industry as a key intermediate in the synthesis of various active pharmaceutical ingredients (APIs). It plays a crucial role in the development of drugs targeting bacterial infections, as it is a core structure in certain antibiotics. Additionally, it is utilized in the production of antifungal and antiviral agents, contributing to the treatment of a range of microbial diseases.

In agrochemicals, this compound is employed in the formulation of pesticides and herbicides. Its incorporation enhances the efficacy of these products in protecting crops from pests and weeds, thereby supporting agricultural productivity.

Furthermore, thiazole-2-carboxylic acid is used in organic synthesis as a building block for more complex molecules. It is particularly valuable in the preparation of heterocyclic compounds, which are essential in materials science and the development of advanced chemicals with specific properties. Its versatility makes it a significant component in research and industrial applications.