C=C1C(=O)O[C@@H]2[C@@H]3O[C@]3(C)C[C@@H]3C=C(C[C@H](OC(=O)C=C(C)C)[C@@H]12)C(=O)O3
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?