Product Description
Common name: Oxyfluorfen
Other name: Oxyfluorfen (BSI, E-ISO, ANSI, WSSA); Oxyfluorfene ((m) F-ISO)
Iupac name: 2-chloro-α , α , α -trifiuoro-p-tolyl-3-ethoxy-4-nitrophenyl ether Chemical Abstracts name 2-chloro-1-(3-ethoxy-4- nitrophenoxy)-4-(trifluoromethyl)benzene
Chemical abstracts name: [42874-03-3]
Type: Herbicide
M. F.: C15H11ClF3NO4
Mol Wt: 361.7
PHYSICAL CHEMISTRY
Form (appearance): Orange, crystalline solid.
M. P.: 85-90º C; (tech., 65-84º C)
B. P.: 358.2º C (decomp. )
V. P.: (pure a. I. ) 0.0267 MPa (7-5º C)
S. G.: 1.35 (73º C)
Solubility.: In water 0.116 mg/l (25º C). Readily soluble in most organic solvents, e. 8. Acetone 72.5, cyclohexanone, isophorone 61.5, dimethylformamide >50, chloroform 50-55, mesityl oxide 40-50 (all in g/100 g, 25º C).
Stability: No significant hydrolysis in 28 d at pH 5-9 (25º C). Decomposed rapidly by u. V. Irradiation; UT50 3 d (room temperature). Stable up to 50º C.
KowlogP: 4.47
Specification: 95%TC, 24%EC
APPLICATION
Formulation types: EC; GR.
Biochemistry: Protoporphyrinogen oxidase inhibitor.
Mode of action: Selective contact herbicide, absorbed more readily by the foliage (and especially the shoots) than by the roots, with very little translocation.
Uses: Control of annual broad-leaved weeds and grasses in a variety of tropical and subtropical crops, by pre- or post-emergence application at rates in the range 0.25-2.0 kg a. I. /ha. Particular crops include tree fruit (including citrus), vines, nuts, cereals, maize, soya beans, peanuts, rice, cotton, bananas, peppermint, onions, garlic, ornamental trees and shrubs, and conifer seedbeds.
Phytotoxicity: Soya beans and cotton may be injured by contact with oxyfiuorfen.
MAMMALIAN TOXICOLOGY
Oral: Acute oral LD50 for rats and dogs >5000 mg/kg.
Skin and eye: Acute percutaneous LD50 for rabbits >10000 mg/kg. Mild to moderate eye irritant; Mild skin irritant (rabbits).
Inhalation: LC50 >5.4 mg/l.
Noel: In chronic dietary trials, NOEL for rats 40, dogs 100, mice 2 mg/kg diet.
ADI: 0.003 mg/kg.
Toxicity: WHO (a. I. ) III (Table 5); EPA (formulation) IV
ECOTOXICOLOGY
Birds: Acute LD50 for bobwhite quail >2150 mg/kg. Dietary LC50 (8 d) for mallard ducks and bobwhite quail >5000 ppm.
Fish: LC50 (96 h) for bluegill sunfish 0.2. Trout 0.41, channel catfish 0.4 mg/l.
Daphnia: LC50 (48 h) 1.5 mg a. I. /l.
Worms: Bees Not toxic to honeybees at 0.025 mg a. I. /bee.
ENVIRONMENTAL FATE
Plant: Not readily metabolised in plants.
Animals: For details of metabolism, see I. L. Adler et al., J. Agric. Food Chem., 1977, 25, 1339.
Soil/Environment: Strongly adsorbed on soil, not readily desorbed, and shows negligible leaching. Koc from 2891 (sand) to 32381 (silty clay loam). Photodecomposition in water is rapid, and on soil is slow. Microbial degradation is not a major factor. Field dissipation DT50 5-55 d; Soil DT50 (in dark) (aerobic) 292 d, (anaerobic) c. 580 d.
| Item | Index | Result |
| Commodity name | Oxyfluorfen 24%EC |
| A.I. content % | ≥24.0 | 24.3 |
| Water, % | ≤0.5 | 0.4 |
| pH value | 6.0-9.0 | 6.7 |
| Cold stability | Qualified | Qualified |
| Heat stability | Qualified | Qualified |
| Emulsifiable stability | Qualified | Qualified |
| Appearance | Unclear liquid, free from visible suspension and deposition |
WE-YOUNG Industrial & Trading Co., Ltd. is a professional enterprise dedicated to R&D, production and sales of agrochemicals which cover herbicides, insecticides, fungicides and plant growth regulators, etc. With thriving development since the establishment in 2002, the company now owns 2 large-scale production bases by equity participation and has respectively manufactured thousand kinds of powder and liquid agrochemicals. In the meanwhile, the company owns an agricultural demonstration farm which covers an area of 200, 000sq. m. for agricultural production programs. "WE-YOUNG" brand pesticides are specially produced for export and have completed the registration of part of the products in South America, Middle East, Africa, Southeast Asia. The "one-stop" service is our dominant advantage. Besides agrochemicals under R&D and production by ourselves, we have built partnership with famous manufacturing enterprises as cooperative exporter. We provide diverse services in time according to different requirements of clients on products, forms and packages. By the "one-stop" service, we have saved the costs on processes of packing, manual work, transportation, so that we can offer competitive prices to our overseas agents and benefit global customers with our green and environmental Protection pesticides of "WE-YOUNG" brand.
Why choose WE-YOUNG?
Stabilization of quality: Our enterprise has won many international approvals such as SGS. The content of technical use for manufacturing pesticide formulations exceeds 95% and CPAC analytical method and FAO standard are strictly observed for quality inspection. We also have established long-term cooperation with China pesticide inspection Center to ensure the stability of quality and sustainability of new product development. Besides, we provide the inspection report of a third party of SGS according to the requirements of clients on various indexes. Our strict and professional goods examination process before shipment will save energy of clients and let them rest assured.
Publicity of additives: We choose high-quality additives and customize the brands and types of additives according to the requirements of clients. We are readying to become the pioneer in ensuring high pesticide effect and low pesticide hazard.
Automation of packaging: Our liquid production base is one of the few factories that have whole sets of automatic filling equipments in China. We choose packing materials according to chemical properties of different pesticides and conduct repetitive leak tests for small bottle of liquid products as well as keep neat appearance of labels and cartons.
Generalization of service: We provide the "one-stop" service. From the products' registration before sales and the client review after sales, our consultant-type intimate service goes through the whole process.
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