Trifloxysulfuron sodium

Structural formula
General
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
properties
Molar mass	459.33 g mol −1
Physical state	firmly
Melting point	170.2-177.7 ° C
solubility	slightly soluble in water (25.7 g l −1 at 25 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 410 P: 273-391-501
Toxicological data	> 5000 mg kg −1 ( LD 50 ,  rat ,  oral )
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.

history

Trifloxysulfuron Sodium was developed by Syngenta and introduced after 2000.

effect

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.

use

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.

proof

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.