COc1cc(CN(C2CCCCC2)S(=O)(=O)c2ccc(S(=O)(=O)N(C)C3CCCCC3)cc2)cc(OC)c1OC
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?