C[C@H]1O[C@@H](OC2CC[C@]3(C=O)[C@H]4CC[C@]5(C)[C@@H](C6=CC(=O)OC6)CC[C@]5(O)[C@@H]4CC[C@]3(O)C2)CC2OC(C)(C)OC21
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?