Page Views: 175 Date Added: 05/18/2010 Last Updated: 05/18/2010 Expiry Date: 05/13/2029 Product/Service Details tribenuron-methyl Chemical Abstracts name: methyl 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoate CAS RN: [101200-48-0] tribenuron Common name: tribenuron IUPAC name: 2-[4-methoxy-6-methyl-1,3,5-triazin-2-yl(methyl)carbamoylsulfamoyl]benzoic acid Chemical Abstracts name: 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoic acid CAS RN: [106040-48-6] PHYSICAL CHEMISTRY tribenuron-methyl Composition: Tech. is >95%. Mol. wt.: 395.4; M.f.: C15H17N5O6S; Form: Light brown, odourless solid. M.p.: 141 ºC; V.p.: 5.2x10-5 mPa (25 ºC). KOW: logP = -0.44 (pH 7). Henry: 1.03x10-8 Pa m3 mol-1 S.g./density: 1.5 (25 ºC). Solubility: In water 0.05 (pH 5), 2.04 (pH 7) (both in g/l, 20 ºC). In acetone 43.8, acetonitrile 54.2, carbon tetrachloride 3.12, ethyl acetate 17.5, hexane 0.028, and methanol 3.39 (all in mg/l, 25 °C). Stability: Stable at 45 ºC. On hydrolysis (45 ºC), stable at pH 8-10 but rapid loss at pH 12. Relatively unstable in most organic solvents. pKa: 5/ tribenuron Mol. wt.: 381.4; M.f.: C14H15N5O6S APPLICATIONS tribenuron-methyl Biochemistry: Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Acts by inhibiting biosynthesis of the essential amino acids valine and isoleucine, hence stopping cell division and plant growth. Selectivity derives from rapid metabolism in the crop. Mode of action: Rapidly absorbed by foliage and roots and translocated throughout the plant. Susceptible plants cease growth almost immediately after post-emergence treatment and are killed in 7-21 days. Surfactants increase the activity of tribenuron-methyl on certain broad-leaved weeds. Uses: Post-emergence control of broad-leaved weeds in spring and winter cereals, at 9-30 g/ha. Formulation types: TB; WG. MAMMALIAN TOXICOLOGY tribenuron-methyl Oral: Acute oral LD50 for rats >5000 mg/kg. Skin and eye: Acute percutaneous LD50 for rabbits >2000 mg/kg. Non-irritating to skin (rabbits); mild (reversible) irritant to eyes. Mildly sensitising to skin (guinea pig maximisation test). Inhalation: LC50 (4 h) for rats >5.0 mg/l air. NOEL: (2 y) for rats 25 ppm diet; (18 mo) for mice 200 ppm diet (30 mg/kg b.w. daily); (1 y) for dogs 250 ppm diet (8.2 mg/kg b.w. daily); (90 d) for rats 100, for mice 500, for dogs 500 mg/kg diet. Non-teratogenic in rats at 20 mg/kg daily. ADI: 0.008 mg/kg. Other: Non-mutagenic in the Ames test, and negative in CHO, unscheduled DNA, in vivo cytogenetic, in vivo mouse micronucleus, and in vitro human lymphocyte assays. Toxicity class: WHO (a.i.) III (Table 5); EPA (formulation) III EC hazard: R43 ECOTOXICOLOGY tribenuron-methyl Birds: Acute oral LD50 for bobwhite quail >2250 mg/kg. Dietary LC50 (8 d) for bobwhite quail and mallard ducks >5620 mg/kg. Fish: LC50 (96 h) for bluegill sunfish and rainbow trout >1000 mg/l. Daphnia: LC50 (48 h) 720 mg/l (unfed), 1000 mg/l (fed). Algae: EC50 (120 h) for green algae and blue-green algae >11.5 ug/l. Bees: LD50 for honeybees >100 ug/bee. Worms: LD50 for earthworms >2000 ppm. ENVIRONMENTAL FATE tribenuron-methyl Soil/Environment: Half-life of tribenuron-methyl in soil 1-7 days. No significant photodecomposition under field conditions. Degradation in the soil occurs by hydrolysis and by direct microbial degradation. Hydrolysis is affected by soil pH, being faster in acidic than alkaline soils. Losses due to volatilisation are not significant.

Tribenuron-methyl, Tribenuron, herbicide

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