UTP

noun

ˈyü-ˈtē-ˈpē 

: a phosphorylated nucleoside C₉H₁₅N₂O₁₅P₃ of uridine that is formed by the phosphorylation of uridylic acid and that reacts with glucose-1-phosphate to yield uridine diphosphate glucose in the biosynthetic pathway of glycogen

called also uridine triphosphate