127346-84-3 Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-22-hydroxy-13,23-bis(2-methyl-1-oxopropoxy)-25-(1-methyl-1-propenyl)-, (6R,13R,22R,23S,25S)- UK 80694 UK-80694