CN(C1CCCCC1)S(=O)(=O)c1ccc2c(c1)c(=O)c(C(=O)N1CCN(c3ccccc3)CC1)cn2C
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?