Cc1ccc(/C=C/c2onc(C)c2S(=O)(=O)N2CCC(C(=O)Nc3ccc(Br)c(C)c3)CC2)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?