Clc1ccc(-c2ccc(-c3nnc(COc4ccc(OCc5nnc(-c6ccc(-c7ccc(Cl)cc7Cl)o6)o5)c(Cl)c4)o3)o2)c(Cl)c1
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?