The molecule is an organic triphosphate formed by condensation between the gamma-phospho group of uridine 5'-triphosphate and crotyl alcohol. It derives from an UTP and a crotyl alcohol.
[[(E)-but-2-enoxy]-hydroxyphosphoryl] [[(2R,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] hydrogen phosphate