CC(=O)Nc1cccc(N2C(=O)/C(=C\c3cccc(Oc4ccccc4)c3)S(=O)(=O)C2c2ccccc2)c1
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?