CCCCCC(O)C1C(=O)OC(C)C(O)/C=C\C=C/C=C\C=C/C=C(/C)C(O)C(O)C(O)CC(O)CC(O)CC(O)CC(O)CC1O
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?