Propoxycarbazone sodium

Structural formula
General
Surname	Propoxycarbazone sodium
Molecular formula	C 15 H 17 N 4 NaO 7 S
External identifiers / databases
EC number	605-920-1
ECHA InfoCard	100.116.019
PubChem	12056759
ChemSpider	7852353
Wikidata	Q27274480
properties
Molar mass	420.37 g mol −1
Melting point	230-240 ° C
solubility	soluble in water (42 g l −1 at 20 ° C)
safety instructions
GHS hazard labeling from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution
H and P phrases	H: 410
	P: ?
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Propoxycarbazone sodium is an active ingredient in crop protection and belongs to the class of sulfonylurea herbicides . It is a colorless crystalline powder.

history

Propoxycarbazone Sodium was developed by Bayer CropScience and introduced in 2000.

effect

Propoxycarbazone Sodium is a systemic herbicide . It is absorbed via the roots and leaves and transported further in the plant. 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. The moisture and sorption capacity of the soil have a major influence on the effectiveness .

use

It is mainly used against broad-leaved weeds and grass weeds in cereal crops.

Environmental aspects

Propoxycarbazone-sodium is not bee-toxic, but chronic aquatic environment . The degradation takes place with a half-life of 9 to 36 days.

proof

Residues can be determined in plants and soils using the HPLC method . A UV detector is required for this.

Admission status

In Germany and the EU , plant protection products containing this active ingredient are approved .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on propoxycarbazone sodium. In: Römpp Online . Georg Thieme Verlag, accessed on July 9, 2020.
↑ Entry on propoxycarbazone sodium in the GESTIS substance database of the IFA , accessed on July 9, 2020(JavaScript required) .
↑ Entry on propoxycarbazone sodium in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on July 13, 2020. Manufacturers or distributors can expand the harmonized classification and labeling .

[Römpp-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on propoxycarbazone sodium. In: Römpp Online . Georg Thieme Verlag, accessed on July 9, 2020.

[GESTIS-2] Entry on propoxycarbazone sodium in the GESTIS substance database of the IFA , accessed on July 9, 2020(JavaScript required) .

[CLP_100.116.019-3] Entry on propoxycarbazone sodium in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on July 13, 2020. Manufacturers or distributors can expand the harmonized classification and labeling .