Page Views: 446 Date Added: 05/20/2010 Last Updated: 05/20/2010 Expiry Date: 05/15/2029 Product/Service Details Common name: prometryn; prometryne IUPAC name: N2,N4-di-isopropyl-6-methylthio-1,3,5-triazine-2,4-diamine Chemical Abstracts name: N,N'-bis(1-methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine CAS RN: [7287-19-6] PHYSICAL CHEMISTRY Composition: Tech. is 96% pure. Mol. wt.: 241.4; M.f.: C10H19N5S; Form: White powder. M.p.: 118-120 ºC; B.p.: >300 °C/100 kPa. V.p.: 0.165 mPa (25 ºC) (OECD 104). KOW: logP = 3.1 (25 ºC, unionised). Henry: 1.2x10-3 Pa m3 mol-1 (calc.) S.g./density: 1.15 (20 ºC). Solubility: In water 33 mg/l (25 ºC). In acetone 300, ethanol 140, hexane 6.3, toluene 200, n-octanol 110 (all in g/l, 25 ºC). Stability: Stable to hydrolysis at 20 ºC in neutral, slightly acidic or slightly alkaline media. Hydrolysed by warm acids and alkalis. Decomposed by u.v. irradiation. pKa: 4.1, weak base. APPLICATIONS Biochemistry: Photosynthetic electron transport inhibitor at the photosystem II receptor site. Also inhibits oxidative phosphorylation. Mode of action: Selective systemic herbicide, absorbed by the leaves and roots, with translocation acropetally through the xylem from the roots and foliage, and accumulation in the apical meristems. Uses: Used pre-emergence, at 0.8-2.5 kg/ha, in cotton, sunflowers, peanuts, potatoes, carrots, peas and beans; post-emergence, at 0.8-1.5 kg/ha, in cotton, potatoes, carrots, celery and leeks. Phytotoxicity: Used as a directed spray on cotton while young, to avoid foliar injury. Formulation types: FW; SC; WP. MAMMALIAN TOXICOLOGY Oral: Acute oral LD50 for rats >2000 mg/kg. Skin and eye: Acute percutaneous LD50 for rats >3100, rabbits >2020 mg/kg. Not irritant to skin and slightly irritant to eyes of rabbits. Not a skin sensitiser (guinea pigs). Inhalation: LC50 (4 h) for rats >5170 mg/m3. NOEL: (2 y) for rats 750, dogs 150 ppm; (21 mo) for mice 10 ppm. ADI: 0.01 mg/kg. Toxicity class: WHO (a.i.) III (Table 5); EPA (formulation) III (80 WP), II (4 L) ECOTOXICOLOGY Birds: Dietary LC50 (8 d) for bobwhite quail >5000, mallard ducks >500 ppm. Fish: LC50 (96 h) for rainbow trout 5.5, bluegill sunfish 7.9 mg/l. Daphnia: LC50 (48 h) 12.66 mg/l. Algae: EC50 (5 d) for Selenastrum capricornutum 0.023 mg/l. Other aquatic spp.: EC50 for mysid shrimp (Mysidopsis bahia) 1.7 mg/l. Bees: Not toxic to bees. LD50 (oral) >99 ug/bee; (contact) >130 ug/bee. Worms: LC50 (14 d) for earthworms 153 mg/kg soil. ENVIRONMENTAL FATE Plants: Metabolised by tolerant plants, and, to a lesser extent, by sensitive plants, by oxidation of the methylthio group to hydroxy metabolites, and by dealkylation of the side-chains. Degradation in plants is generally slow. Soil/Environment: In soil, microbial degradation takes place, with oxidation of the methylthio group to hydroxy metabolites, and dealkylation of the side-chains. Median DT50 in soil 50 d (14-158 d). Koc 400, indicating low mobility in soil. Degradation in aquatic systems is caused by microbial processes; further dissipation results from adsorption to the suspended and bottom sediments.

Prometryn

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