CCC(C)n1c(SCC(=O)N(CC)c2c(N)n(Cc3ccccc3)c(=O)[nH]c2=O)nc2ccccc2c1=O
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?