Benzimidazoline salts, their preparation and compositions containing them.

摘要

Benzimidazoline salts of formula (I):
<Chemistry id="chema01" num="0001"><Image id="ia01" he="34" wi="92" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein:
<UnorderedLists id="ula01" listStyle="none"><ListItem>R<Sup>n(+)</Sup> represents a cation having a valency of n, n being an integer from 1 to 3;</ListItem><ListItem>R<Sup>1</Sup> represents halo or trifluoromethyl;</ListItem><ListItem>R<Sup>2</Sup> represents hydrogen or C<Sub>1-4</Sub> alkyl; and</ListItem><ListItem>R<Sup>3</Sup> represents hydrogen, or fluoro or C<Sub>1-3</Sub></ListItem></UnorderedLists>
fluoroalkyl, have been found to be effective ectoparasiticides.