Ivermectin EP Impurity E

Chemical Name: 5-O,12-didemethyl-12-ethyl-22,23-dihydroavermectin A1a (as per EP)

Smile: O[C@]1([C@H](C(O[C@H](C2)C[C@@H](C/C=C3\C)O[C@]42CC[C@H](C)[C@]([C@@H](C)CC)([H])O4)=O)C=C(C)[C@H]5O)[C@]5([H])OC/C1=C\C=C\[C@@H]([C@@H]3O[C@H](O[C@@H](C)[C@@H]6O[C@@H](C[C@H](OC)[C@H]7O)O[C@H]7C)C[C@@H]6OC)CC