... O-demethylavermectin A1a (i) mixture with 5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)avermectin A1a (ii)CAS NO.71751-41 ... 3Molecular FormulaC48H72O14·C47H70O14Molecular Weight1732.14InChIInChI=1/C48H72O14.C47H70O14/c1-11-25(2)43-28(5)17-18-47(62-43) ... 16,20-24H2,1-10H3;11-14,16-18,24-25,27,29-30,32-44,48-49,51H,15, ... 38+,39+,40-,41+,42+,43-,44+,45-,47-,48-;25-,27-,29-,30-,32+,33-,34-,35-,36-,37-, ...