CAS No 87392-12-9
Formulations 96%EC
Molecular formula C15H22ClNO2
Package as customer's requirement
Common name S-Metolachlor
Product category Herbicide
Chemical name 2-chloro- N -(2-ethyl-6-methylphenyl)-N -(2-methoxy-1-methylethyl)acetamide
CAS No 87392-12-9
Molecular formula C15H22ClNO2
Application Control of annual grasses and some broad-leaved weeds in maize, sorghum, cotton, sugar beet, fodder beet, sugar cane, potatoes, peanuts, soya beans, safflowers, sunflowers, various vegetables, fruit and nut trees, and woody ornamentals.
Formulations 96% EC
Product Description
-Product Name:Metolachlor/Racmt/Dual
-CAS No::51218-45-2
-Molecular formula:C15H22ClNO2
-Density:1.1g/cm3
-Vapour Pressure:7.91E-07mmHg at 25°C
-Molecular weight:283.7937
-Boiling point:406.8°C at 760 mmHg
-Flash point : 199.8°C
Application
Soybeans, corn, cotton, peanuts, potatoes, cabbage, spinach, garlic,
Sunflower, sesame, rapeseed, turnip, sugar cane and so on.
It also can be used on Orchards and other leguminous compositae,
cruciferae, solanaceae, apiaceae and crops.
Specification
Metolachlor 95%/96%/97%TC |
ITEMS |
STANDARDS |
Appearance |
brown liquid |
Content of a.i. |
≥96 % |
Water |
≤0.5% |
Acidity(as H2SO4) |
≤0.3% |
Physical Properties
Molecular weight:283.8; Physical form:Colourless to light tan liquid. Density:1.12 (20 °C); Composition:Racemic mixture of (1S)- and (1R)- isomers. Melting point:-62.1 °C; Flash point:190 °C (1013 mbar); Vapour pressure:4.2 mPa (25 °C) (OECD 104); Henry constant:2.4 ×10-3 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 2.9 (25 °C); Solubility:In water 488 mg/l (25 °C) ( OECD 105). Miscible with benzene, toluene, ethanol, acetone, xylene, hexane, dimethylformamide, ethylene dichloride, cyclohexanone, methanol, octanol, and dichloromethane. Insoluble in ethylene ; Stability:Stable up to c. 275 °C. Hydrolysed by strong alkalis and strong mineral acids. On hydrolysis in buffer (20 °C), DT50 ( calc.) >200 d (pH >10).;
Toxicology
Oral:Acute oral LD50 for rats 2780 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats >3170 mg/kg. Mild skin and eye irritant (rabbits). May cause skin sensitisation (guinea pigs). Inhalation: LC50 (4 h) for rats >1.75 mg/l air. Phytotoxicity:Well tolerated by most broad-leaved crops, maize, sorghum (safened with fluxofenim or oxabetrinil). ADI:0.008 mg/ kg b.w.
Environmental Profile
Ecotoxicology: Algae:EC50 for Scenedesmus subspicatus 0.1 mg/l.Bees: LD50 (oral and contact) >110 mg/bee.Birds:Acute oral LD50 for mallard ducks and bobwhite quail >2150 mg/kg. Dietary LC50 (8 d) for bobwhite quail and mallard ducks >10 000 mg/ kg.Daphnia:LC50 (48 h) 25 mg/l.Fish:LC50 (96 h) for rainbow trout 3.9, carp 4.9, bluegill sunfish 10 mg/l.Worms:LC50 (14 d) for earthworms 140 mg/ kg soil.
Environmental fate: Animals:Rapidly oxidised by rat liver microsomal oxygenases via dechlorination, O-demethylation and side-chain oxidation (J. Agric. Food Chem., 1989, 37, 1088).Soil:Major aerobic metabolites are derivatives of oxanilic and sulfonic acids. DT50 in soil c. 20 d (field). Koc 121-309.Plant:In plants, metabolism involves natural product conjugation of the chloroacetyl group, and hydrolysis and sugar conjugation at the ether group. Final metabolites are polar, water-soluble, and non-volatile
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