Twenty microliters of 5 mmol/L 9-fluorenylmethyl chloroformate (FMOC-Cl) in CH 3 CN was added with immediate mixing and allowed to react at 20 °C for 20 min in a water circulator. After that, 10 μL of ...

The frequency of honey bees did not decrease with the application of n.octyl.acetate, citronellal and 2.heptanone, used as repellents, in the concentrations 2.5, 5.0, 7.5 and 10.0% diluted in water.

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