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Atomic structure
There is only one chemically distinct structure:
O=C(O[C@H]1[C@@H](O)O[C@H](CO)[C@@H](O)[C@@H]1OC(=O)c1cc(O)c(O)c(O)c1Oc1cc2c(=O)oc3c(O)c(O)cc4c(=O)oc(c1O)c2c34)c1cc(O)c(O)c(O)c1