Synonyms: MilbemycinB, 5-O-demethyl-28-deoxy-25-(1,3-dimethyl-1-butenyl)-6,28-epoxy-23-(methoxyimino)-,[6R,23E,25S(E)]-;Milbemycin B,5-O-demethyl-28-deoxy-25-[(1E)-1,3-dimethyl-1-butenyl]-6,28-epoxy-23-(methoxyimino)-,(6R,23E,25S)- (9CI);23-Methoxime-LL-F 28249a;CL 301423;ProHeart 6;Quest;Quest (parasiticide);Vetdectin Oral Drench;Milbemycin B,5-O-demethyl-28-deoxy-25-(1,3-dimethyl-1-buten-1-yl)-6,28-epoxy-23-(methoxyimino)-,(6R,23E,25S)-;