Syzygium cumini L. Skeels or Duwet (Java plum) is a plant that belong to the Myrtaceae family. Duwet plants contain secondary metabolites such as flavonoids, tannins, and contain essential oil. The content of secondary metabolites in duwet leaves has great potential to be used as medicine. Identification of metabolites at the tissue level, synthesis sites or storage sites for pharmacologic…