C=C(C)[C@H]1CC[C@]2(C(=O)O)CC[C@]3(C)[C@@H](CC[C@@H]4[C@]3(C)CC[C@H]3C(C)(C)[C@H](O)CC[C@]43C)[C@H]12
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?