O=C(Nc1ccccc1)c1cc(S(=O)(=O)Nc2n[nH]c(=O)[nH]2)c(SSc2cc(Cl)c(C(=O)Nc3ccccc3)cc2S(=O)(=O)Nc2n[nH]c(=O)[nH]2)cc1Cl
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?