Trifloxysulfuron sodium

from Wikipedia, the free encyclopedia
Structural formula
Structural formula of trifloxysulfuron sodium
Surname Trifloxysulfuron sodium
Molecular formula C 14 H 13 F 3 N 5 NaO 6 S
Brief description

White dust

External identifiers / databases
CAS number 199119-58-9
EC number 688-332-8
ECHA InfoCard 100.214.984
PubChem 23676736
ChemSpider 11677318
Wikidata Q27294606
Molar mass 459.33 g mol −1
Physical state


Melting point

170.2-177.7 ° C


slightly soluble in water (25.7 g l −1 at 25 ° C)

safety instructions
GHS labeling of hazardous substances
09 - Dangerous for the environment


H and P phrases H: 410
P: 273-391-501
Toxicological data

> 5000 mg kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Trifloxysulfuron sodium is an active ingredient in crop protection and belongs to the class of sulfonylurea herbicides . It is a white solid.


Trifloxysulfuron Sodium was developed by Syngenta and introduced after 2000.


Trifloxysulfuron Sodium is a systemic herbicide . It is absorbed via the roots and leaves and transported further both to the root and to the leaf. The active ingredient acts as an ALS inhibitor . The biosynthesis of the amino acids L-leucine , L-isoleucine and L-valine , i.e. some essential amino acids , is inhibited . This inhibits cell division , so that growth comes to a standstill. Ultimately, the plants fade and necrosis forms , which is why the weeds die.


It is mainly used against weeds, grass weeds and reeds in cotton crops. It is also used in sugar cane crops mixed with Ametryn .

Environmental aspects

Trifloxysulfuron sodium is neither poisonous to bees nor to fish. The degradation occurs through hydrolysis of the sulfonylurea group with a half-life of 7 to 11 weeks.


Residues can be determined in plants and soils using the HPLC method .

Admission status

In Germany and in the EU does not have so far pesticides admitted that this active ingredient contained.

Individual evidence

  1. a b c d e f g h i j k Entry on trifloxysulfuron sodium. In: Römpp Online . Georg Thieme Verlag, accessed on July 9, 2020.
  2. a b Registration dossier on sodium (4,6-dimethoxypyrimidin-2-yl) ({[3- (2,2,2-trifluoroethoxy) pyridin-2-yl] sulfonyl} carbamoyl) azanide (Section GHS ) at the European Chemicals Agency (ECHA), accessed on July 17, 2020.