KORASSA, YULIUS BAKI, Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Padjadjaran University, St. Raya Bandung Sumedang, Km, 21 Jatinangor 45363, Pharmacy Study Program, Health Polytechnic of Ministry of Health, St. Piet A. Tallo, Liliba, Kupang, East Nusa Tenggara, Indonesia