NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | the development and production of organic heterocyclic selective absorption conduction type herbicide after seedling, its common name is fluoride grass, other names are also the treatment of the spirit, suitable for the control of wheat, barley, A variety of broad-leaved weeds in the field of gramineous crops such as maize. The formulation is a 20% augmentation oil which is light brown or brown liquid in appearance and has a storage stability of over 2a at room temperature.
efficacy | According to Chinese pesticide toxicity grading standard, it is a low toxicity herbicide, 20% the acute oral LD50 of the rats was 5000mg/kg, and the acute percutaneous LD50 was greater than 2000mg/kg. It is a kind of post-seedling herbicide, which is absorbed by plants soon after the drug, so that the sensitive plants appear typical hormone herbicide reaction, plant deformity, distortion, and finally die. |
pharmacological effects | flue-cured tobacco smoke is a kind of post-seedling herbicide, which is absorbed by plants soon after administration, sensitive Plants appear typical hormone herbicide response, plant deformity, distortion. Temperature has no effect on the final effect of the herbicide, but the speed of its efficacy is generally slow at lower temperatures, which can stop the growth of plants after poisoning, but do not die immediately, death occurred immediately after the temperature rose. |
toxicity | Acute Oral ld502405 mg/kg in rats, and acute oral LD50>5000mg/kg in mice. Rabbit acute percutaneous LD50 is 1800mg/kg (>2000mg/kg). Rats fed for 3 months Test No effect dose of 20mg/kg per day. It has no irritation to the skin, moderate irritation to the eyes, and no sensitization to the skin of guinea pigs. The dose of acid which has no effect on chronic feeding test of rats is 80mg/kg per day. No teratogenic, carcinogenic or mutagenic effects were observed in animal experiments. Rainbow trout LC50>100mg/L (96H), goldfish 0.7mg/L (96H), Daphnia 100mg/L (48h), Daphnia> 0.5mg (ester)/L. Quail acute oral LD50>2000mg (ester)/L. Bee LC50>0.1mg/(ester)/only (48h). |
Use | pyridyloxyacetic acid herbicide. With the role of absorption conduction, there are typical of hormone-type herbicide response. After seedling use, the reaction of the typical hormone herbicide appeared in the sensitive crops. Widely used in cereal crops, can be used for wheat, barley, corn, grape and orchard, pasture, forest and other places to control broad-leaved weeds, such, the weeds, such as Tuff, rolled stem and purslane, are not effective to grass weeds. If it is used for winter wheat, it will return to the green period after winter, spring wheat will be in the 2-4 leaf period, weeds will be basically out, and then it will be applied with 50% emulsifiable concentrate 7.5~10ml/100, and water 4.5, it is used in 2-4 leaf stage of weeds. This product can also be mixed with a variety of other herbicides such as 2,4-drops, 2me4chlorine, Isoproturon, Green Malone, grass spirit, grass net. |
production method | from 2-methanesulfonyl-3, 2-ethoxycarbonylmethoxy-3, 5-dichloro-4-amino-6-fluoropyridine was prepared by the reaction of 5-dichloro-4-amino-6-fluoropyridine with ethyl hydroxyacetate, in the ethanol solution, the above product was added to an aqueous sodium hydroxide solution, reacted at 55 ° C., cooled and acidified to obtain the product flumidine. |
category | pesticide |
toxicity grade | poisoning |
Acute toxicity | oral-rat LD50: 2405 mg/kg |
flammability hazard characteristics | toxic nitrogen oxide, chloride, and sulfur oxide gases from combustion |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
extinguishing agent | dry powder, foam, sand |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |