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Common NameHexazinone
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中文通用名环嗪酮
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IUPAC3-cyclohexyl-6-dimethylamino-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione
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CAS3-cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione
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CAS No.51235-04-2
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Molecular FormulaC12H20N4O2
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Molecular Structure
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Category
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ActivityHerbicide
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PremixSulfometuron-methyl+hexazinone
Hexazinone+Diuron
Granule, water-soluble granule, water-soluble liquid, and undiluted liquid applied with exact delivery handgun.
Premix Parters: copper oxychloride;
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Physical PropertiesMolecular weight:252.3g/mol; Physical form:Colourless, odourless crystals. Density:1.25; Melting point:115-117℃; Vapour pressure:0.03 mPa (extrapolated) (25℃); 8.5 mPa (86℃); Partition coefficient(n-octanol and water):logP = 1.2 ( pH 7); Solubility:In water 33 g/ kg (25 ℃). In chloroform 3880, methanol 2650, benzene 940, dimethylformamide 836, acetone 792, toluene 386, hexane 3 (all in g/ kg, 25℃).; Stability:Stable in aqueous media between pH 5 and pH 9 and below 37 ℃. Decomposed by strong acids and strong alkalis. Stable to light.
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ToxicologyOral:Acute oral LD50 for rats 1690, guinea pigs 860 mg/ kg. Percutaneous:Acute percutaneous LD50 for rabbits >5278 mg/kg. Reversible irritant to eyes (rabbits); non-irritating to skin (guinea pigs). Inhalation: LC50 (1 h) for rats >7.48 mg/l. Phytotoxicity:Should not be used for weed control in larch (Larix spp.) or in areas planted with deciduous species. ADI:0.02 mg/ kg b.w.
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Environmental ProfileEcotoxicology:
Bees:Not toxic to bees; LD50 >60 μg/bee. Birds:Acute oral LD50 for bobwhite quail 2258 mg/kg. Dietary LC50 (8 d) for bobwhite quail and mallard ducklings >10 000 mg/ kg diet.Daphnia: LC50 (48 h) 442 mg/l.Fish: LC50 (96 h) for rainbow trout 320-420, fathead minnow 274, bluegill sunfish 370-420 mg/l.
Environmental fate:
Animals:Major urinary metabolites in rats are 3-(4-hydroxycyclohexyl)-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4-(1H,3H)-dione, 3-cyclohexyl-6-(methylamino)-1-methyl-1,3,5-triazine-2,4-(1H,3H)-dione, and 3-(4-hydroxycyclohexSoil:Microbial degradation occurs in soil and natural waters. The triazine ring is broken, with the liberation of CO2. DT50 in soil c. 1-6 mo, depending on climate and soil type. -
Transport InformationSignal Word:DANGER; Hazard Class:Ib(Highly hazardous)
Porduct NewsMore
Canada is confirming the current registration of herbicide hexazinone
Jiangsu Corechem begins trial production of hexazinone at Jiangsu Corechem
TKI acquires global hexazinone herbicide business assets from DuPont
Australia approved 13 ais registrations (Special gazette, 9 December 2014)
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