Phytochemistry Letters《植物化学快报》(双月刊). Phytochemistry Letters invites rapid communications on all aspects of natural product research including: Structural elucidation of natural products; Analytical evaluation of herbal medicines; Clinical efficacy, safety and pharmacovigilance of herbal medicines; Natural product biosynthesis; Natural product synthesis and chemical modification; Natural product metabolism; Chemical ecology; Biotechnology; Bioassay-guided isolation; Pharmacognosy; Pharmacology of natural products; Metabolomics; Ethnobotany and traditional usage; Genetics of natural products.