The molecule is a D-ribose 5-triphosphate in which the ribose is in the furanose form and has alpha-configuration at the anomeric centre. It is a conjugate acid of an alpha-D-ribose 5-triphosphate(4-).
[hydroxy(phosphonooxy)phosphoryl] [(2R,3S,4R,5S)-3,4,5-trihydroxyoxolan-2-yl]methyl hydrogen phosphate