Page Views: 209 Date Added: 05/18/2010 Last Updated: 05/18/2010 Expiry Date: 05/13/2029 Product/Service Details Common name: esfenvalerate IUPAC name: (S)-a-cyano-3-phenoxybenzyl (S)-2-(4-chlorophenyl)-3-methylbutyrate Chemical Abstracts name: [S-(R*,R*)]-cyano(3-phenoxyphenyl)methyl 4-chloro-2-(1-methylethyl)benzeneacetate Other names: fenvalerate-U CAS RN: [66230-04-4] PHYSICAL CHEMISTRY Composition: Tech. is 95% total isomers and 75% resolved (S,S)- isomers. Mol. wt.: 419.9; M.f.: C25H22ClNO3; Form: Colourless crystals; (tech., yellow-brown viscous liquid or solid at 23 ºC). M.p.: 59.0-60.2 ºC; (tech., 43.3-54 °C). B.p.: 151-167 ºC (tech.) V.p.: 2x10-4 mPa (25 ºC). KOW: logP = 6.22 (25 ºC). Henry: 4.20x10-2 Pa m3 mol-1 (calc.) S.g./density: 1.26 (4-26 ºC) Solubility: In water 0.002 mg/l (25 ºC). In xylene, acetone, chloroform, ethyl acetate, dimethylformamide, dimethyl sulfoxide >600, hexane 10-50, methanol 70-100 (all in g/kg, 25 ºC). Stability: Relatively stable to heat and light. Stable to hydrolysis at pH 5, 7 and 9 (25 °C). Specific rotation: [a]D25 -15.0?(c 2.0 in methanol). F.p.: 256 °C (Pensky-Martens). APPLICATIONS Biochemistry: Voltage dependent sodium channel agonist. Mode of action: Insecticide with contact and stomach action. Uses: A potent contact and ingested insecticide with a very broad range of activity, especially effective against Coleoptera, Diptera, Hemiptera, Lepidoptera and Orthoptera on cotton, fruit, vegetables and other crops, at 5-25 g a.i./ha. It is effective against strains resistant to organochlorine, organophosphorus and carbamate insecticides. Phytotoxicity: Some injury has been noted on crucifers, cucumbers, aubergines, tomatoes, pears and mandarin oranges. Formulation types EC; SC; UL. MAMMALIAN TOXICOLOGY Oral: Acute oral LD50 for rats 75-88 mg/kg. Skin and eye: Acute percutaneous LD50 for rats >5000, rabbits >2000 mg/kg. Slight skin irritant; mild eye irritant. Not a skin sensitiser. NOEL: No effect on sub-chronic studies at 2 mg/kg daily. ADI: 0.02 mg/kg. Other: Acute LD50 values vary with the vehicle, concentration, route and species, etc.; values reported sometimes differ markedly. No carcinogenic, developmental or reproductive toxicity in animal tests. Toxicity class: WHO (a.i.) II; EPA (formulation) II EC hazard: T; R23/25| R43| N; R50, R53 ECOTOXICOLOGY Birds: Acute oral LD50 for bobwhite quail 381 mg/kg. LC50 (8 d) for bobwhite quail >5620, mallard ducks 5247 ppm. Fish: Extremely toxic to aquatic animals. LC50 (96 h) for fathead minnows 0.690, bluegill sunfish 0.26, rainbow trout 0.26 ug/l. Daphnia: LC50 (48 h) 0.24 ug/l. Bees: LD50 (contact) 0.017 ug/bee. ENVIRONMENTAL FATE Animals: Rapid metabolism and elimination occurs in rats and other animals. Primary metabolism involves hydroxylation of 2'- and 4'- hydroxyl moieties, ester cleavage, hydroxylation and oxidation of the alcohol derivatives, oxidation of the cyano moiety and conjugation of the acidic metabolites with sulfate, glycine and glucuronic acid. Plants: The major metabolite was decarboxylated fenvalerate. Ester cleavage, hydration of the cyano group to carboxamide and carboxylic acid, hydroxylation of the 2'- and 4'- phenoxy positions, conversion of the alcohol moiety to 3-phenoxybenzyl alcohol and 3-phenoxybenzoic acid, and conjugation of the resulting carboxylic acids and alcohols with sugars, also occur. Soil/Environment: In sand (0.38% o.m.), Kd (25 ºC) 4.4; in sandy loam (pH 7.3, 1.1% o.m.), Kd (25 ºC) 6.4, DT50 88 d; in silty loam (pH 5.3, 2.0% o.m.), Kd (25 ºC) 71, DT50 114 d; in clay loam (pH 5.7, 0.2% o.m.), DT50 287 d; in clay loam (pH 6.4, 1.5% o.m.), Kd (25 ºC) 105. Koc 5300.

Es-fenvalerate

Company Information (Shanghai Skyblue Chemical Co., Ltd.)

Company Profile: Shanghai Skyblue Chemical Co., Ltd. is an integrated company located in Pudong New Area of Shanghai China. Our business scopes include the development, manufacturing, researching, and marketing agrochemicals. We are capable of supplying a wide range of high quality agrochemicals, including insecticides (especially household and public health insecticides), fungicides, herbicides, pesticide synergists and other relative agrochemicals in both technical grade and formulation in different packages as per customer's requirements. To make quality products is our credo. We always target to provide our customers with top quality products along with moderate prices and professional services, and endeavor to be a 360o-solution supplier for agrochemicals. Currently our products are being exported to more than twenty countries and enjoy high reputation in the global market. On the basis of equality and mutual benefits, we always look forward to establishing and maintaining long term partnerships with all customers toward a future of resplendence. At present we can supply the following products: Insecticides: Acetamiprid,Alpha-Cypermethrin, Aluminium Phosphide, Azamethiphos, Beta-Cyfluthrin, Bifenthrin, Bioallethrin, Carbaryl, Carbofuran, Carbosulfan, Cartap, Chlorpyrifos, Cyfluthrin, D-Allethrin, D-Cyphenothrin, Deltamethrin, Dichlorvos, Diethyltoluamide, Dimehypo, Dimethoate, D-Phenothrin, D-Tetramethrin, Empenthrin, Es-bioallethrin, Es-Fenvalerate, Etofenprox, Fenitrothion, Fenpropathrin, Fenthion, Fenvalerate, Fipronil, Flumethrin, Hydramethylnon, Imidacloprid, Imiprothrin, Lambda-cyhalothrin, Malathion, Permethrin, Pirimiphos-methyl, Prallethrin, Propoxur, S-Bioallethrin, Tefluthrin, Tetramethrin, Thiocyclam, Transfluthrin Fungicides: Clofentezine, Difenoconazole, Mancozeb, Metiram, Propiconazole, Propineb, Tebuconazole, Thiabendazole Herbicides: Acetochlor, Ametryn, Atrazine, Bensulfuron-methyl, Butachlor, Chlorimuron-ethyl, Chlorsulfuron, Cyanazine, Fenchlorazole, Fenoxaprop-p-ethyl, Glyphosate, Metsulfuron-methyl, Nicosulfuron, Prometryn, Pyrazosulfuron-ethyl, Quinclorac, Quizalofop-p-ethyl, Simazine, Simetryn, Terbuthylazine, Terbutryn, Tribenuron-methyl Pesticide Synergists: Piperonyl Butoxide, MGK 264. >> More Website URL: http://www.bridgat.com/u15636