英文别名Moxidectin Impurity 20; Keto-Moxidectin; Nemadectin Impurity 1; Milbemycin B, 5-O-demethyl-28-deoxy-25-[(1E)-1,3-dimethyl-1-buten-1-yl]-6,28-epoxy-23-oxo-, (6R,25S)-; (6R,25S)-5-O-Demethyl-28-deoxy-25-[(1E)-1,3-dimethyl-1-buten-1-yl]-6,28-epoxy-23-oxomilbemycin B; Nemadectin Impurity; Milbemycin B,5-O-demethyl-28-deoxy-25-(1,3-dimethyl-1-butenyl)-6,28-epoxy-23-oxo-, [6R,25S(E)]- 
