What are the main uses of 4-{[4-(Dimethylamino)phenyl](phenyl)methylene}-N,N-dimethyl-2,5-cyclohexadien-1-iminium chloride - ethanedioic acid (1:1:1) (CAS: 2437-29-8)?

This compound is primarily used in pharmaceutical research as an intermediate for drug development, particularly in compounds targeting biological systems. It also serves in organic synthesis due to its reactive iminium and Schiff base functionalities. Additionally, it may find applications in industrial chemistry and dye manufacturing, leveraging its structural complexity and interactions with oxalic acid. Its use in food is limited, but it may be explored in specialized research contexts.