Fluvalinate
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Fluvalinate[1] is a synthetic pyrethroid chemical compound contained as an active agent in the products Apistan,[2] Klartan, and Minadox, that is an acaricide (specifically, a miticide), commonly used to control Varroa mites in honey bee colonies,Script error: No such module "Unsubst". infestations that constitute a significant disease of such insects.
Fluvalinate is a stable, nonvolatile,[3] viscous, heavy oil (technical) soluble in organic solvents.[4] Although the compound may be found in drones, a study has found honey samples virtually absent of fluvalinate, on account of its affinity to beeswax.[5]Template:Better source
CHS Health Classification
Fluvalinate is considered an acute toxic, Health hazard and environmental hazard by ECHA (European Chemicals Agency).
The chemical is fatal if inhaled and is extremally toxic to aquatic life. If not fatal the effects are permanent and has multiple long lasting effects.
Stereoisomerism
Fluvalinate is synthesized from racemic valine [(RS)-valine], the synthesis is not diastereoselective. Thus, fluvalinate is a mixture of four stereoisomers, each about 25%.[6]
| (R,R)-Fluvalinat (R,R)-configuration |
(S,S)-Fluvalinat (S,S)-configuration |
| (S,R)-Fluvalinat (S,R)-configuration |
(R,S)-Fluvalinat (R,S)-configuration |
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Tau-fluvalinate (τ-fluvalinate) is the trivial name for (2R)-fluvalinate. The C atom in the valinate structure is in (R)-absolute configuration, while the second chiral atom is a mixture of (R)- and (S)-configurations:[4]
| (R,R)-Fluvalinat (R,R)-configuration |
(R,S)-Fluvalinat (R,S)-configuration |
See also
References
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Further reading
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