| Synonyms: | 22,23-Dihydro-5-O-demethylavermectin A1a;5-O-Demethyl-22,23-dihydroavermectin A1a;Dihydroavermectin B1a;Ivermectin B1a;IvermectinH2B1a;(2Ae,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17ar,20R,20ar,20bs)-20,20B-dihydroxy-5',6,8,19-tetramethyl-6'-[(1S)-1-methylpropyl]-17-oxo-3',4',5',6,6',10,11,14,15,17,17A,20,20A,20B-tetradecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-o-(2,6-dideoxy-3-o-methyl-alpha-L-arabino-hexopyranosyl)-3-o-methyl-alpha-L-arabino-hexopyranoside;Avermectin A1a, 5-O-demethyl-22,23-dihydro-;Ivermectin Impurity 3 |