Salicylaldehyde is widely used in organic synthesis as a key intermediate for producing various chemicals. It serves as a precursor in the manufacture of coumarins, which are important in fragrances, pharmaceuticals, and fluorescent dyes. In the pharmaceutical industry, it is utilized to synthesize compounds with antibacterial, antifungal, and anti-inflammatory properties. Additionally, salicylaldehyde is employed in the production of chelating agents, which are used in metal ion detection and extraction processes. Its role in the synthesis of Schiff bases makes it valuable in coordination chemistry and catalyst development. In agriculture, it is used to create pesticides and herbicides. Furthermore, salicylaldehyde is applied in the synthesis of organic light-emitting diodes (OLEDs) and other advanced materials for electronics.