CCn1cc(C(=O)NCCc2ccc(OC)c(OC)c2)c(=O)c2cc(S(=O)(=O)N3CCc4ccccc4C3)ccc21
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?