Oxydemeton-methyl
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Oxydemeton-methyl | |||||||||||||||
other names |
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Molecular formula | C 6 H 15 O 4 PS 2 | |||||||||||||||
Brief description |
colorless liquid |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 246.3 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
1.29 g cm −3 |
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Melting point |
<−20 ° C |
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boiling point |
106 ° C (1.3 Pa ) |
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solubility |
soluble in water |
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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 . |
Oxydemeton-methyl (often incorrectly spelled Oxydemethon-methyl ) is a 1: 1 mixture ( racemate ) of two isomeric chemical compounds from the groups of thiophosphoric acid esters and sulfoxides . It is classified as toxic and dangerous to the environment. Oxydemeton-methyl is a cholinesterase inhibitor , acts as a systemic insecticide and was brought onto the market by Bayer AG in 1960.
Isomerism
As an unsymmetrical sulfoxide, Oxydemeton-methyl has a stereocenter on the sulfur atom, so the sulfoxide group is chiral . Thus there are two enantiomers, ( R ) -oxydemeton-methyl and the mirror image ( S ) -oxydemeton-methyl. Oxydemeton-methyl is used as a racemate [1: 1 mixture of ( R ) -oxydemeton-methyl and ( S ) -oxydemeton-methyl].
use
Oxydemethon-methyl is used as a systemic insecticide and acaricide . It is used to combat spider mites , aphids , saw wasps , leaf fleas and other sucking insects.
Admission
No plant protection products containing this active ingredient are permitted in the EU or Switzerland .
Individual evidence
- ↑ a b c d Entry on Oxydemeton-methyl. In: Römpp Online . Georg Thieme Verlag, accessed March 30, 2014.
- ↑ a b c d e f g Entry on Oxydemeton-methyl in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
- ↑ Entry on Oxydemeton-methyl in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ Entry on Oxydemeton-methyl in the PAN Pesticide Database.
- ↑ General Directorate Health and Food Safety of the European Commission: Entry on Oxydemeton-methyl in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 27, 2016.