O=C(CNC(=O)OCc1ccccc1)NCCCCC(NC(=O)OCc1ccccc1)C(=O)NC(CCCCNC(=O)CNC(=O)OCc1ccccc1)C(=O)OCc1ccccc1
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?