C=C1C(=O)O[C@H]2[C@H]1[C@H](OC(=O)CC(=O)O[C@@H]1C[C@@H](C)[C@@H]3C=CC(=O)[C@@]3(C)[C@H]3OC(=O)C(=C)[C@@H]31)C[C@@H](C)[C@H]1C=CC(=O)[C@]12C
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?