Pefurazoate
Structural formula | ||||||||||||||||
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Basic structural formula (stereocenter is marked with an * ) | ||||||||||||||||
General | ||||||||||||||||
Surname | Pefurazoate | |||||||||||||||
other names |
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Molecular formula | C 18 H 23 N 3 O 4 | |||||||||||||||
Brief description |
brownish liquid |
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properties | ||||||||||||||||
Molar mass | 345.4 g mol −1 | |||||||||||||||
Physical state |
liquid |
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boiling point |
decomposes above 235 ° C |
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Vapor pressure |
0.65 m Pa (23 ° C) |
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solubility |
very sparingly soluble in water: 0.443 g l −1 (25 ° C) |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Pefurazoate is a chemical compound belonging to the imidazole group . Pefurazoate is a fungicide that was launched in 1990 by Ube Industries and Hokko Chemical Industry .
use
Pefurazoate is used as a dressing agent in rice cultivation against Fusarium moliniforme (Bakanae), Cochliobolus miyabeanus and the rice blight fungus .
Stereoisomerism
Pefurazoate is a 1: 1 mixture ( racemate ) of the enantiomers with ( S ) - (-) - and ( R ) - (+) - configuration. The ( S ) - (-) - configured isomer is said to be a lot more effective than its mirror image isomer with ( R ) - (+) - configuration.
Pefurazoate (2 enantiomers) |
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( S ) configuration |
( R ) configuration |
Admission
No plant protection products containing this active ingredient are permitted in the EU or Switzerland .
literature
- Patent EP0248086 : Imidazole derivatives, bactericides containing them and manufacturing processes. Applied on December 12, 1985 , published on March 17, 1993 , Applicants: Ube Industries, Ltd., Hokko Chemical Industry Co., Ltd, Inventors: Yohjiro Hirota, Hisao Sugiura, Nobuyuki Kuroda, Takuo Wada, Kazuyuki Tsujimoto.
Individual evidence
- ↑ Crop Protection Handbook 2014 . 100th edition. MeisterPro, Willoughby, Ohio 2014, pp. 456 .
- ↑ a b c d e f Wolfgang Krämer, Ulrich Schirmer, Peter Jeschke, Matthias Witschel: Modern Crop Protection Compounds: Herbicides, Volume 1 . Wiley-VCH, 2011, ISBN 978-3-527-32965-6 , pp. 1231 ( limited preview in Google Book search).
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ Directorate-General for Health and Food Safety of the European Commission: Entry on pefurazoate in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 27, 2016.