Inositol is a naturally occurring nutrient found in various forms, the most common being myo-inositol. It is found in phospholipids which function as cellular mediators of signal transduction, in metabolic regulation, and growth.
Bulgaria has 526 rivers longer than 2.3 km. The only navigable river is the Danube, which flows along the northern Bulgarian border.The rivers of  Peninsular India are not suitable for navigation as they flow  swiftly over the plateaus and highlands.
The Danube is navigable by ocean ships from the Black Sea to BrÄila in Romania and by river ships to Kelheim, Bavaria, Germany; smaller craft can navigate further upstream to Ulm, WÃ¼rttemberg, Germany. About 60 of its tributaries are also navigable.