Delta2-Avermectin B1a

Delta2-Avermectin B1a is a degradation product formed by the reversible base-catalyzed isomerization of ivermectin B1a (Cay-18768). It is less active than ivermectin against T. urticae (LC90s = 0.23 and 0.038 ppm, respectively).Molecular Formula: C48H72O14. Formula Weight: 873.1. Purity: >95%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMSO: soluble. lambdamax: 253 nm. SMILES: C/C([C@@H](O[C@@]1([H])C[C@H](OC)[C@@H](O[C@]2([H])O[C@@H](C)[C@H](O)[C@@H](OC)C2)[C@H](C)O1)[C@@H](C)/C=C/C=C3[C@@]4(O)C5=CC(C)[C@@H](O)[C@@]4([H])OC/3)=C\C[C@]6([H])C[C@@](OC5=O)([H])C[C@]7(C=C[C@H](C)[C@]([C@@H](C)CC)([H])O7)O6. InChi Code: InChI=1S/C48H72O14/c1-11-25(2)43-28(5)17-18-47(62-43)23-34-20-33(61-47)16-15-27(4)42(26(3)13-12-14-32-24-55-45-40(49)29(6)19-35(46(51)58-34)48(32,45)52)59-39-22-37(54-10)44(31(8)57-39)60-38-21-36(53-9)41(50)30(7)56-38/h12-15,17-19,25-26,28-31,33-34,36-45,49-50,52H,11,16,20-24H2,1-10H3/b13-12+,27-15+,32-14+/t25-,26-,28-,29?,30-,31-,33+,34-,36-,37-,38-,39-,40+,41-,42-,43+,44-,45+,47+,48+/m0/s1. InChi Key: HUCQMMKOSSBDDS-NAPFNFQHSA-N.