6-Chloro-2-methoxynicotinaldehyde is primarily used as an intermediate in the synthesis of various pharmaceutical compounds. It plays a crucial role in the development of active pharmaceutical ingredients (APIs), particularly in the production of drugs targeting neurological and cardiovascular disorders. Its structure allows for further chemical modifications, making it valuable in creating complex molecules with therapeutic potential. Additionally, it is utilized in organic research for the development of novel chemical entities and in the study of reaction mechanisms. Its applications extend to agrochemical research, where it contributes to the synthesis of compounds with potential pesticidal or herbicidal properties.