Used primarily as a building block in organic synthesis, especially in the development of pharmaceuticals and agrochemicals. Its aldehyde functionality allows for easy modification, enabling the formation of Schiff bases, alcohols, and carboxylic acid derivatives. It plays a key role in the preparation of nitrogen-containing heterocyclic compounds, which are common in bioactive molecules. Commonly employed in the synthesis of herbicides and plant growth regulators due to its structural similarity to natural pyridine-based metabolites. Also explored in medicinal chemistry for the development of compounds with potential antihypertensive, antiviral, and anti-inflammatory activities. Its reactivity and solubility profile make it suitable for use in catalytic reactions and multistep synthetic routes.