Cc1ccc(C(=O)O)cc1-c1ccc(/C=C2\SC(=O)N(CC(=O)Nc3ccc4c(c3)OCO4)C2=O)o1
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?