Obeticholic Acid Dimer Impurity

Chemical Name: 3a(3a,7a-dihydroxy-6a-ethyl-5b-cholan-24-oyloxy)7a-hydroxy-6a- ethyl-5b-cholan-24-oic acid ; (4R)-4-((3R,5S,6R,7R,8S,9S,10S,13R,14S,17R)-6-ethyl-3-(((4R)-4-((3S,6S,7S,8S,9S,10S,13R,14S,17R)-6-ethyl-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoyl)oxy)-7-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid

Smile: C[C@H](CCC(O)=O)[C@H]1CC[C@@]2([H])[C@]3([H])[C@H](O)[C@H](CC)[C@]4([H])C[C@H](OC(CC[C@@H](C)[C@H]5CC[C@@]6([H])[C@]7([H])[C@@H](O)[C@@H](CC)C8C[C@@H](O)CC[C@]8(C)[C@@]7([H])CC[C@]56C)=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C