:Talk:Coumaphos

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Ester > Ketone

I have changed the IUPAC name in such a way where the ester has priority over the ketone, i.e

O,O-Diethyl O-3-chloro-4-methyl-2-oxo-2H-chromen-7-yl phosphorothioate --kupirijo (talk) 23:15, 17 February 2011 (UTC)