inosine

/ˈɪnəsiːn/
noun
  1. A chemical compound found in the body that is involved in building RNA and in energy transfer in cells.
    • Scientists study inosine to understand how it affects the immune system.
    • Inosine is one of the building blocks of RNA, the molecule that helps cells make proteins.
    • Some athletes take inosine supplements hoping to improve their energy levels during exercise.