Cc1cc(/N=N/c2ccc(/N=N/c3c(O)c(S(=O)(=O)O)cc4cc(S(=O)(=O)O)ccc34)cc2C)ccc1/N=N/c1ccc2cc(S(=O)(=O)O)cc(S(=O)(=O)O)c2c1
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?