Milbemycin A3

Milbemycin A3 is a member of a complex family of macrocyclic lactones that contain a characteristic spiroketal group produced from the fermentation of soil bacterium S. hygroscopicus subsp. aureolacrimosus. As a compound that potentiates glutamate and GABA-gated chloride-channel opening, milbemycin A3 is used as a nematocide and insecticide. The acaricidal and nematocidal activity of a mixture of milbemycin A3 and milbemycin A4 (Cay-17155) against adult spider mites, spider mite eggs, and C. elegans are reported at IC50 values of 5.3, 41.1, and 9.5 µg/ml.Formal Name: (6R,25R)-5-O-demethyl-28-deoxy-6,28-epoxy-25-methyl-milbemycin B. CAS Number: 51596-10-2. Synonyms: Antibiotic B 41A3, Milbemycin alpha1. Molecular Formula: C31H44O7. Formula Weight: 528.7. Purity: >85%. Formulation: (Request formulation change), A solid. Solubility: DMF: Soluble, DMSO: Soluble, Ethanol: Soluble, Methanol: Soluble. SMILES: C[C@H]([C@@H](C)CC1)O[C@]21C[C@](OC([C@@]3([H])[C@@]4(O)[C@@]5([H])[C@H](O)C(C)=C3)=O)([H])C[C@](C/C=C(C)/C[C@@H](C)/C=C/C=C4\CO5)([H])O2. InChi Code: InChI=1S/C31H44O7/c1-18-7-6-8-23-17-35-28-27(32)21(4)14-26(31(23,28)34)29(33)36-25-15-24(10-9-19(2)13-18)38-30(16-25)12-11-20(3)22(5)37-30/h6-9,14,18,20,22,24-28,32,34H,10-13,15-17H2,1-5H3/b7-6+,19-9+,23-8+/t18-,20-,22+,24+,25-,26-,27+,28+,30-,31+/m0. InChi Key: ZLBGSRMUSVULIE-GSMJGMFJSA-N. Origin: Bacterium/Streptomyces hygroscopicus.