Etofenprox

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Structural formula
Structural formula of Etofenprox
General
Surname Etofenprox
other names
  • 2- (4-ethoxyphenyl) -2-methylpropyl 3-phenoxybenzyl ether
  • 3-phenoxybenzyl-2- (4-ethoxyphenyl) -2-methylpropyl ether
  • Trebon
Molecular formula C 25 H 28 O 3
Brief description

white crystals

External identifiers / databases
CAS number 80844-07-1
EC number 407-980-2
ECHA InfoCard 100.100.942
PubChem 71245
ChemSpider 64377
Wikidata Q2415193
properties
Molar mass 376.49 g mol −1
Physical state

firmly

density

1.17 g cm −3

Melting point

37.4 ° C

boiling point

decomposes above 200 ° C

solubility

almost insoluble in water (0.0225 mg l −1 at 20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
09 - Dangerous for the environment

Caution

H and P phrases H: 362-410
P: 201-260-263-273-308 + 313-391
Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Etofenprox is a chemical compound from the group of pyrethroid - ether ( phenol ), which in 1987 by Mitsui Chemicals was patented.

Extraction and presentation

Etofenprox can be obtained through a multi-step reaction. 4-ethoxybenzyl cyanide and iodomethane react first . The product continues to react with sulfuric acid and lithium aluminum hydride . The intermediate product reacts with 3-phenoxybenzyl bromide to form Etofenprox.

Admission

Etofenprox has been authorized in the EU as an active ingredient in plant protection products for use as an insecticide since January 2010 .

Plant protection products with this active ingredient are approved in a number of EU countries, including Germany, Austria and Switzerland.

Individual evidence

  1. ↑ a b c d e f g Entry on Etofenprox in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on December 20, 2013.
  2. ↑ a b Entry on Etofenprox in the GESTIS substance database of the IFA , accessed on December 11, 2016(JavaScript required) .
  3. ↑ Entry on etofenprox (ISO); 2- (4-ethoxyphenyl) -2-methylpropyl 3-phenoxybenzyl ether in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 5, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 912 ( limited preview in Google Book search).
  5. ↑ Commission Directive 2009/77 / EC of July 1, 2009 amending Council Directive 91/414 / EEC to include the active substances chlorsulfuron, cyromazine, dimethachlor, etofenprox, lufenuron, penconazole, triallate and triflusulfuron .
  6. ^ Directorate-General for Health and Food Safety of the European Commission: Entry on Etofenprox in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on February 18, 2016.