Phytochemistry of the genus impatiens (Balsaminaceae): A review

The genus Impatiens L. belongs to the Balsaminaceae family and includes more than 480 accepted species. This genus grows in tropical and subtropical regions, mostly in tropical Africa, India, southwestern part of Asia, and southern China. Various phytochemical studies have been conducted; however, there are no recent reports that provide a comprehensive summary of the phytochemistry of Impatiens L. The review summarizes literature data on chemical components identified in the species of Impatiens L. The available information was collected from scientific databases through a search using the keyword 'Impatiens'. Phytochemical studies led to the identification and/or isolation of 300 different compounds that have been reported from 27 species. These compounds encompass flavonoids, phenolic acids, coumarins, quinones, triterpenoid saponins, sterols, and alkaloids. Additionally, phytochemical compositions of the essential oils of some species have been evaluated.