SMILES: C([C@@H]1[C@H]([C@H]([C@H](O1)OP(=O)([O-])[O-])O)O)OP(=O)([O-])[O-]
Description: The molecule is a D-ribose 1,5-diphosphate(4-) in which the anomeric centre has alpha-configuration. It is a conjugate base of an alpha-D-ribose 1,5-bisphosphate.