Avermectin B1a

Chemical Name: 5-O-Demethylavermectin A1a (> 95%); Avermectin B1a (> 95%)

Smile: C[C@H]1[C@H](O)[C@@H](OC)C[C@]([H])(O[C@H]2[C@H](C)O[C@@]([H])(O[C@H](/C(C)=C/C[C@]3([H])C[C@H](OC4=O)C[C@@]5(O[C@@]([C@@](CC)([H])C)([H])[C@@H](C)C=C5)O3)[C@@H](C)/C=C/C=C6CO[C@@]7([H])[C@]\6(O)[C@@]4([H])C=C(C)[C@H]7O)C[C@@H]2OC)O1