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