O=C(/C=C/c1ccc(OCCSCCCCCCCCCCSCCOc2ccc(/C=C/C(=O)c3ccc(Cl)cc3)cc2)cc1)c1ccc(Cl)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?