Prof. Okogun obtained his B.Sc. in 1963 and PhD in 1967 at the University of Ibadan in Nigeria. He then held a position of lecturer in the same University, becoming Professor in 1977. He was Head of Chemistry Department, Dean of the Faculty of Science, Hall Master independence Hall, Hall Warden Independence Hall and sub Dean of Postgraduate  at the University of Ibadan. His research interests include chemical investigation of Nigerian medicinal plants for the development of nutrition supplements/nutraceuticals and phytomedicines, isolation – analyses and modification of biologically active natural products for the purpose of developing potential drugs/leads – molecular probes and pesticides, degraded triterpenoid, gedunin and the diterpene roseanolone for the pupose of converting them into various transformation products for the structure activity studies, invesigation of Nigerian traditional herbal remedies for tuberculosis. After 1995 he became associated with the Nigerian Institute Pharmaceutical Research and Development (NIPRD) where he has served as Head of Department of Medicinal Plant Research and Traditional Medicine, as Honorary Adjunct Professor.  He has also served as Chairman of the Governing Council of the Nigerian Industrial Training Fund, Vice President and Editor-in-Chief of the Chemical Society of Nigeria, Director of the Welton Energy and Equip Supplies. He is member of the Alexander von Humboldt Darmstadt Technische Hochscule of Germany and several others professional societies. He has national, regional and international awards and recognitions and also has 125 publications.