N=C(N)NS(=O)(=O)c1ccc(NC(=O)c2ccc3nc4ccccc4c(Nc4ccc(S(=O)(=O)N=C(N)N)cc4)c3c2)cc1
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?