CCN(CCCl)c1cc(CN(C)C)cc(NC(=O)c2ccc(C(=O)Nc3cc(CN(C)C)cc(N(CC)CCCl)c3)cc2)c1.Cl
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?