NOMENCLATURE Common name fomesafen (BSI, draft E-ISO, ANSI); fomésafène ((m) draft F-ISO) IUPAC name 5-(2-chloro-?,?,?-trifluoro-p-tolyloxy)-N-methylsulfonyl-2-nitrobenzamide Chemical Abstracts name 5-[2-chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamide CAS RN [72178-02-0] EEC no. 276-439-9


Selective herbicide, absorbed by both leaves and roots, with very limited translocation in the phloem.


Early post-emergence control of broad-leaved weeds in soya beans. Applied at 200-400 g/ha.

Production formulation

Fomesafen 25%SL
Fomesafen 20%EC
Fomesafen 20%ME