C[C@H]1C=C2[C@@H]3CC(C)(C(=O)O)CC[C@]3(C)CC[C@]2(C)[C@]2(C)CC[C@H]3C(C)(C)[C@@H](OC(=O)c4cccc5c(=O)c6ccccc6[nH]c45)CC[C@]3(C)[C@@H]12
Please calculate the molecule's mass based on standard atomic weight.