Adenosine Triphosphate (ATP):A complex organic chemical that provides energy to drive many processes in living cells, e.g., muscle contraction, nerve impulse propagation, and chemical synthesis.
Cytosine Triphosphate (CTP): A high-energy molecule similar to ATP or GTP but containing cytosine instead of adenine or guanine.
Uridine Triphosphate (UTP): An energy-rich compound used in various cellular functions including biosynthesis of polysaccharides and protein translation.