Page Views: 196 Date Added: 05/20/2010 Last Updated: 05/20/2010 Expiry Date: 05/15/2029 Product/Service Details Common name: clofentezine IUPAC name: 3,6-bis(2-chlorophenyl)-1,2,4,5-tetrazine Chemical Abstracts name: 3,6-bis(2-chlorophenyl)-1,2,4,5-tetrazine CAS RN: [74115-24-5] PHYSICAL CHEMISTRY Mol. wt.: 303.1; M.f.: C14H8Cl2N4; Form Magenta crystals. M.p.: 182.3 ºC; V.p.: 1.3x10-4 mPa (25 ºC) (gas saturation and glc). KOW: logP = 4.1 (25 ºC). Henry: 1.97x10-4 Pa m3 mol-1 (calc.) S.g./density: 1.51 (20 °C). Solubility: In water 2.5 ug/l (pH 5, 22 ºC). In dichloromethane 37, acetone 9.3, hexane 1, ethanol 0.5 (all in g/l, 25 ºC). Stability: The a.i. and formulated products are stable to light, heat and air; on hydrolysis (22 ºC), DT50 248 h (pH 5), 34 h (pH 7), 4 h (pH 9). F.p.: Low flammability. APPLICATIONS Mode of action: Specific acaricide with contact action, and long residual activity. Inhibits embryo development. Uses: Control of eggs and young motile stages (but not adults) of Panonychus ulmi and Tetranychus spp. on pome fruit and stone fruit (20 g/hl), citrus fruit (12.5-20 g/hl), nuts, vines (20 g/hl), hops, strawberries (200-300 g/ha), cucurbits (100-400 g/ha), cotton (150-250 g/ha), and ornamentals (20-30 g/hl). Has no effect on predatory mites or beneficial insect species. Phytotoxicity: May cause slight injury to glasshouse roses. May cause a slight pink deposit on petals of white or pale flowers. Formulation types: SC; WP. MAMMALIAN TOXICOLOGY Oral: Acute oral LD50 for rats >5200 mg/kg. Skin and eye: Acute percutaneous LD50 for rats >2100 mg/kg. Mild eye and skin irritant. Inhalation LC50 (4 h) for rats >9 mg/l air. NOEL: (2 y) for rats 40 mg/kg diet; (1 y) for dogs 50 mg/kg diet. ADI: 0.02 mg/kg b.w. Toxicity class: WHO (a.i.) III (Table 5); EPA (formulation) III ECOTOXICOLOGY Birds: Acute oral LD50 for mallard ducks >3000, bobwhite quail >7500 mg/kg. Dietary LC50 (8 d) for mallard ducks and bobwhite quail >2000 mg/kg diet. Fish: LC50 (96 h) for rainbow trout >0.015, bluegill sunfish >0.25 mg/l (limits of solubility). Daphnia: LC50 (48 h) >1.45 ug/l (limit of solubility). Algae: Not toxic to Scenedesmus panonicus up to limit of solubility. Bees: Acute LD50 (oral) >20 ug/bee; LC50 (contact) >1500 ppm. ENVIRONMENTAL FATE Animals: In mammals, undergoes metabolism by hydroxylation and exchange of the chlorine atoms on the rings for methylthio groups. Following oral administration, excretion occurs within 24-48 hours in the urine and faeces. Plants: In metabolism studies, unchanged clofentezine was the major extractable residue. Trace amounts (4%) of 2-chlorobenzonitrile, the major photodegradation product, were also detected. Soil/Environment: In soil, the major degradation route leads to 2-chlorobenzoic acid, and finally to CO2. DT50 in soil 65-85 d (15 ºC), 28-56 d (25 ºC), depending upon soil type. However, in laboratory studies, no leaching occurs. In water, 2-chlorobenzonitrile is the major product formed by hydrolysis and photodegradation, with smaller amounts of other compounds. Low solubility in water makes determination of soil adsorption constants difficult.

Clofentezine

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