Used as a natural antioxidant in functional foods and dietary supplements to support cardiovascular and immune health. Employed in cosmetic formulations for its anti-aging and skin-protective properties due to free radical scavenging activity. Investigated for anti-inflammatory and antiviral effects in pharmaceutical research. Serves as a bioactive marker in quality control of plant extracts, particularly from Eucommia ulmoides and other medicinal herbs. Also utilized in analytical standards for HPLC and mass spectrometry in flavonoid profiling studies.