Halfenprox
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Halfenprox | ||||||||||||||||||
other names |
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Molecular formula | C 24 H 23 BrF 2 O 3 | ||||||||||||||||||
Brief description |
colorless liquid |
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properties | |||||||||||||||||||
Molar mass | 477.34 g mol −1 | ||||||||||||||||||
Physical state |
liquid |
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density |
1.31 g cm −3 |
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boiling point |
decomposes above 291 ° C |
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solubility |
almost insoluble in water (0.00005 mg l −1 at 20 ° C) |
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safety instructions | |||||||||||||||||||
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Toxicological data | |||||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Halfenprox is a chemical compound from the group of pyrethroid - ether ( phenol ), which in 1993 by Mitsui Chemicals was patented.
Extraction and presentation
Halfenprox can be obtained by reacting 2- (4-bromodifluoromethoxyphenyl) -2-methylpropanol and 3-chloromethyldiphenyl ether.
use
Halfenprox is used as an insecticide and acaricide .
Admission
The active ingredient Halfenprox is not approved for use in plant protection products in the European Union . In Germany, Austria and Switzerland, no pesticides with this active ingredient are permitted.
Individual evidence
- ↑ a b c d e f Entry on Halfenprox in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed December 19, 2013.
- ↑ a b Data sheet Halfenprox at Sigma-Aldrich , accessed on May 22, 2017 ( PDF ).
- ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 917 ( limited preview in Google Book search).
- ↑ Regulation (EC) No. 2076/2002 of the Commission of November 20, 2002 (PDF) extending the deadline according to Article 8 (2) of Council Directive 91/414 / EEC and on the non-inclusion of certain active substances in Annex I of this Directive and the revocation of the approval of plant protection products with these active substances.
- ↑ General Directorate Health and Food Safety of the European Commission: Entry on Halfenprox (aka brofenprox) in the EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on February 18, 2016.