Cc1c(NS(=O)(=O)c2ccc3[nH]c(COc4ccccc4Cl)nc3c2)c(=O)n(-c2ccccc2)n1C
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?