Fulvestrant Impurity D

Chemical Name: 7ξ,7′ξ-nonane-1,9-diylbis[estra-1,3,5(10)-triene-3,17β-diol] (as per EP) 7,7-Nonamethylene-bis(estra-1,3,5(10)-triene-3,17-diol-(7α,17β) (as per USP)

Smile: C[C@@]12[C@@H](O)CC[C@@]1([H])[C@]3([H])[C@H](CCCCCCCCC[C@H]4CC(C=C(O)C=C5)=C5[C@@]6([H])[C@]4([H])[C@]7([H])[C@@]([C@H](O)CC7)(C)CC6)CC8=C(C=CC(O)=C8)[C@@]3([H])CC2