State Key Laboratory of Bioactive Substance and Function of Natural Medicines;
Institute of Materia Medica;
Chinese Academy of Medical Sciences ξ Peking Union Medical College;
Panax; notoginseng; Notoginsenoside-Ng3; Notoginsenoside-Ng4; Single-crystal; X-ray; diffraction; Acetylcholinesterase; inhibitory; activity;