Atomic structure
There is only one chemically distinct structure:
CC(=O)O[C@@H]1[C@@H](O)O[C@H](COP(=O)(O)O[C@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@@H]2OC(C)=O)[C@@H](O)[C@@H]1O