COc1ccc(O[C@H]2C=C[C@@H](c3ccccc3)O[C@H]2COC(=O)CC/C(C)=N/OCC[C@@H]2C=C[C@H](OC(C)=O)[C@H](COC(C)=O)O2)cc1
Heavy atom refers to any atom that is not hydrogen. The heavy atoms in molecules are carbon, oxygen, nitrogen, and sulfur. How many heavy atoms are in the molecule?