C=C(C(C)C)C(C)(C)/C=C/[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C 24,24,26,26-tetramethylcholesta-5,22(E),25(27)-trien-3β-ol