Used as an intermediate in the synthesis of capsaicinoids, which are compounds found in chili peppers responsible for their pungency. Commonly employed in research and development of pain relief medications, particularly in topical creams and patches targeting neuropathic pain, arthritis, and muscle soreness. Also utilized in the creation of synthetic flavors and fragrances due to its vanillin-like structure. Plays a role in the production of certain agrochemicals and in laboratory settings for studying sensory neuron activity.