Plants either in raw form or their isolated bioactive constituents are utilized as complementary and alternative medicine in various disorders. The present study was designed to evaluate chief phytochemical constituents of various fractions of Brachychiton populneus leaves and its antioxidative aptitude against free radicals. | Estimation of phytochemical constituents and in vitro antioxidant potencies of Brachychiton populneus Schott Endl.