27-hydroxyavermectin
CAS No. 109084-58-4
Spiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2'-[2H]pyran],avermectin A1a deriv.
5-氟-2-甲基苯甲酰胺