fenvalerate
92%tech, 20%ec,
Insecticide, acaricide, ixodicide
pyrethroid
NOMENCLATURE
Common name fenvalerate (BSI, E-ISO, (m) F-ISO, ESA)
IUPAC name (RS)-a-cyano-3-phenoxybenzyl (RS)-2-(4-chlorophenyl)-3-methylbutyrate
Chemical Abstracts name cyano(3-phenoxyphenyl)methyl 4-chloro-a-(1-methylethyl)benzeneacetate
CAS RN [51630-58-1] unstated stereochemistry Development codes S-5602 (Sumitomo); WL 43 775 (Shell) Official codes OMS 2000
PHYSICAL CHEMISTRY
Composition Tech. grade fenvalerate is 92.1% pure. Mol. wt. 419.9 M.f. C25H22ClNO3 Form Tech. fenvalerate is a viscous yellow or brown liquid, sometimes partly crystalline at room temperature. M.p. 39.5-53.7 ¡ãC (pure) B.p. Decomposes on distillation. V.p. 1.92 ´ 10-2 mPa (20 ºC) KOW logP = 5.01 (23 ºC) S.g./density 1.175 (25 ºC) Solubility In water <10 mg/l (25 ºC). In n-hexane 53, xylene ³200, methanol 84 (all in g/l, 20 ºC). Stability Stable to heat and moisture. Relatively stable in acidic media, but rapidly hydrolysed in alkaline media. F.p. 230 ¡ãC
APPLICATIONS
Mode of action Non-systemic insecticide and acaricide with contact and stomach action. Uses Control of a wide range of pests, including those resistant to organochlorine, organophosphorus, and carbamate insecticides. Uses include control of chewing, sucking, and boring insects (particularly Lepidoptera, Diptera, Orthoptera, Hemiptera, and Coleoptera) in fruit, vines, olives, hops, nuts, vegetables, cucurbits, cotton, oilseed rape, sunflowers, alfalfa, cereals, maize, sorghum, potatoes, beet, peanuts, soya beans, tobacco, sugar cane, ornamentals, forestry, and on non-crop land. Used for control of flying and crawling insects in public health situations and in animal houses. Also used as an animal ectoparasiticide. Formulation types EC; UL; SC; WP. Compatibility Incompatible with alkaline materials.
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product name: |
fenvalerate 92% tech |
fenvalerate 20% ec |
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appearance: |
yellow to brown-yellow powder |
yellow to brown-yellow ropy liquid |
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a.i. content: |
92.13% |
20.03% |
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water : |
0.10% |
0.10% |
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acidity: |
0.10% |
0.10% |
