CCCNC(=O)C[C@@H]1C[C@@H]2c3cc(NS(=O)(=O)c4ccc(OC)cc4)ccc3O[C@@H]2[C@@H](CO)O1
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?