Avermectin B1a

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Molecular Formula: C48H72O14

CAS Number: 65195-55-3.

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Avermectin B1a is a macrocyclic lactone that makes up a large component of the anthelimintic Abamectin used to control parasitic nematodes in livestock. Avermectin B1a also acts as an insecticide and acaricide.