A new flavonol glycoside was isolated together with two known flavonoids fr
om the stems of Catharanthus roseus (Apocynaceae). Its structure was establ
ished as syringetin-3-O-robinobioside by means of UV, MS and NMR data, espe
cially two dimensional experiments. (C) 1998 Elsevier Science Ltd. All righ
ts reserved.