Bioactive Secondary Metabolites from Bauhinia variegata Linn. Roots: Isolation, Characterization, and Cytotoxic Evaluation.

Introduction: This study aims to isolate and characterize potential cytotoxic compounds from the roots of Bauhinia variegata Linn. (Caesalpiniaceae) and evaluate their activity against human cancer cell lines. Five compounds, namely β-sitosterol (1), piperine (2), piperolein B (3), retrofractamide A (4), and dehydropipernonaline (5), were isolated from B.