NC(Cc1ccc(S(=O)(=O)O)cc1)C(=O)NC(Cc1ccc(S(=O)(=O)O)cc1)C(=O)NC(Cc1ccc(S(=O)(=O)O)cc1)C(=O)[O-].[Na+]
How many heavy atoms like carbon, oxygen, nitrogen, sulfur and other non-hydrogen atoms do the molecule contain?