Chemical Name:(13aS,14R,17R,17aR,2'R,4'E,42R,44S,5'S,6E,6'S,9R,10E,12E)-13a,17-Dihydroxy-4'-(methoxyimino)-16,5',7,9-tetramethyl-6'-[(2E)-4-methylpent-2-en-1-yl]-13a,14,17,17a-tetrahydro-12H-3-oxa-1(4,3)-[1]benzofurana-4(4,2)-oxanaspiro[cyclododecaphane-6,10,12(13)-trien-46,2'-oxan]-2-one ((6R,23E,25S)-5-O-demethyl-28-deoxy-6,28-epoxy-23-(methoxyimino)-25-[(2E)-4-methylpent-2-en-1-yl]milbemycin B) (as per EP) ; (6R,25S)-5-O-Demethyl-28-deoxy-25-[(E)-1,3-dimethyl-1-butenyl]-6,28-epoxy-23-oxomilbemycin B 23-(E)-(O-methyloxime) (as per USP)
