O=C1[C@H]2[C@H]3C[C@@H]([C@H]2C(=O)N1c1ccc2c(c1)OCO2)[C@@H]1C(c2ccc(OCc4ccccc4)cc2)=NO[C@H]31
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?