Formulation: A solid
Formal Name: Milbemycin A3: (6R,25R)-5-O-demethyl-28-deoxy-6,28-epoxy-25-methyl-milbemycin BMilbemycin A4: (6R,25R)-5-O-demethyl-28-deoxy-6,28-epoxy-25-ethyl-milbemycin B
Purity: ≥95% (mixture)
Formula Markup: C31H44O7 (A3) and C32H46O7 (A4)
Formula Weight: 0
Shelf life (days): 1460
CAS Number: 1799297-76-9
Notes: Milbemectin is a mixture of milbemycin A3 (30%; Item No. 18360) and milbemycin A4 (70%; Item No. 17155) that has acaricidal and nematocidal activity against adult spider mites, spider mite eggs, and C. elegans with IC50 values of 5.3, 41.1, and 9.5 µg/ml, respectively.{28380} It acts as an allosteric agonist of the Drosophila RDL GABA receptor.{36022} It is also effective against the pinewood nematode, B. xylophilus with an LC20 of 0.0781 mg/liter.{36023}