Bifenox

Structural formula
General
Surname	Bifenox
other names	Methyl 5- (2 ', 4'-dichlorophenoxy) -2-nitrobenzoate; 5- (2 ', 4'-dichlorophenoxy) -2-nitrobenzoic acid methyl ester; Fox;
Molecular formula	C 14 H 9 Cl 2 NO 5
Brief description	pale yellow, crystalline solid with a slightly aromatic odor
External identifiers / databases
EC number	255-894-7
ECHA InfoCard	100.050.795
PubChem	39230
Wikidata	Q424830
properties
Molar mass	342.14 g mol −1
Physical state	firmly
Melting point	84-86 ° C
solubility	practically insoluble in water (0.35 mg l −1 at 20 ° C)
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 410
	P: 273-501
Toxicological data	6400 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 .

Bifenox is an active ingredient for crop protection and a chemical compound from the group of diphenyl ether herbicides and dichlorophenoxybenzoic acid derivatives .

properties

Bifenox is a pale yellow, water-insoluble solid.

use

Bifenox is used as an active ingredient in crop protection products. Like the related fluorodifene , oxyfluorfen and chlomethoxyfen , diphenyl ether herbicide is classified as a contact herbicide. Bifenox is a protoporphyrinogen oxidase inhibitor and acts on the young parts of the shoot, leaves and partly on the roots of broad-leaved weeds and grasses. The released peroxides destroy the cell membranes of the weed plants and lead to the death of the tissue. Bifenox also has an inhibitory effect on photosynthesis. The effect is enhanced by high light intensity and metabolic activity.

In many EU countries, including Germany and Austria, pesticides containing bifenox are approved for use against weeds in the cultivation of grain and rapeseed. There are no pesticides with this active ingredient on the market in Switzerland.

Individual evidence

↑ ^a ^b ^c Entry on Bifenox. In: Römpp Online . Georg Thieme Verlag, accessed on February 10, 2014.
↑ ^a ^b ^c ^d ^e Entry on Bifenox in the GESTIS substance database of the IFA , accessed on February 9, 2017(JavaScript required) .
↑ Kwesi Ampong-Nyarko: A Handbook for Weed Control in Rice. Int. Rice Res. Inst., 1991, ISBN 978-9-712-20020-5 , p. 68 ( limited preview in Google book search).
↑ adama-produkte.com: Fox , accessed February 9, 2017.
↑ General Directorate Health and Food Safety of the European Commission: Entry on Bifenox in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on December 7, 2019.

[roempp-1] Entry on Bifenox. In: Römpp Online . Georg Thieme Verlag, accessed on February 10, 2014.

[GESTIS-2] Entry on Bifenox in the GESTIS substance database of the IFA , accessed on February 9, 2017(JavaScript required) .

[3] Kwesi Ampong-Nyarko: A Handbook for Weed Control in Rice. Int. Rice Res. Inst., 1991, ISBN 978-9-712-20020-5 , p. 68 ( limited preview in Google book search).

[4] -produkte.com: Fox , accessed February 9, 2017.

[PSM-5] General Directorate Health and Food Safety of the European Commission: Entry on Bifenox in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on December 7, 2019.