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4-(3-Oxobutyl)phenyl acetate (4-(4-acetoxyphenyl) -2-butanone) is a standard melon fly attractant.
A 2241 (OTTO) 4-(4-Acetoxyphenyl)-2-butanone, ≥96% Cas 3572-06-3 - used as attractant for detection programs aimed at melon fly and other cuelure-responding Bactrocera fruit flies.