... -O-methyl-α-L-arabino-hexopyranosyl)-3O-methyl-α-L-arabino- hexopyranoside (Avermectin B1a) (10E,14E,16E,22Z)-(1R,4S,5S,6S,6S ... -methyl-α-L-arabino-hexopyranosyl)-3-O-methyl-α-L-arabino- hexopyranoside (Avermectin B1b)CAS No.: 71751-41-2Structure: Molecular Formula: C48H72O14; C47H70O14Molecular ...