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.
Nearly rectangular in outline, Bulgaria is bounded by Romania to the north, with most of the border marked by the lower Danube River. The Black Sea lies to the east, Turkey and Greece to the south, Macedonia to the southwest, and Serbia to the west. The capital city, Sofia, lies in a mountainous basin in the west.