δ-Caesalpin is primarily investigated for its potential biological activities, particularly in the field of natural product-based drug discovery. It has shown promising antimicrobial properties, making it a candidate for development in treatments against certain bacterial and fungal infections. Research also indicates possible anti-inflammatory and antioxidant effects, which could be leveraged in pharmaceuticals or nutraceuticals aimed at reducing oxidative stress or managing inflammatory conditions. Due to its natural origin and structural profile, δ-Caesalpin is of interest in the design of new bioactive molecules and as a lead compound in medicinal chemistry. Its applications remain largely in the research and development phase, with ongoing studies to fully understand its mechanism and therapeutic potential.