OCCc1ccsc1-c1sc(-c2cc(CCO)c(-c3sc(-c4cc(CCO)c(-c5sccc5CCO)s4)cc3CCO)s2)cc1CCO
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?