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