A brief analysis of the pesticide Cartap hydrochloride
What is Cartap hydrochloride(15263-52-2)?
The pesticide Cartap hydrochloride is a moderately toxic pesticide. No allergic reactions to eyes and skin under normal conditions. No carcinogenic, teratogenic or mutagenic effects have been observed. It is toxic to fish, toxic to bees and silkworms, low-toxic to birds, and non-toxic to natural enemies such as spiders. Molecular formula: C7H15N3O2S2, Cas 15263-52-2. Cartap hydrochloride can be used to control a variety of pests and nematodes such as Lepidoptera, Coleoptera, Hemiptera, and Diptera, and has little impact on predatory mites.
Characteristics of Cartap hydrochloride (15263-52-2)
The insecticide Cartap hydrochloride is usually made into hydrochloride, which appears as white crystals and has a slight odor. Decomposes at 183~183.5 degrees Celsius, melting point (original drug) 179~181 degrees Celsius. Slightly soluble in methanol, hardly soluble in ethanol, insoluble in ether, acetone, chloroform, benzene and other organic solvents. The solubility in water at 25 degrees Celsius is 200g/L. It is stable in acidic media, unstable in alkaline media, and corrosive to iron and other metals.
Toxicity: The acute oral LD50 of male rats is 345MG/KG, that of females is 325MG/KG, and the acute oral LD50 of mice is 192MG/KG. It has no carcinogenic, teratogenic or mutagenic effects, is toxic to silkworms, has low toxicity to birds, and is safe to natural enemies such as spiders.
Chemical properties of Cartap hydrochloride (15263-52-2)
The insecticide Cartap hydrochloride is usually made into hydrochloride, which appears as white crystals and has a slight odor. m.p.183～183.5℃ (decomposition) (the melting point of the original drug is 179～181℃). Slightly soluble in methanol, hardly soluble in ethanol, insoluble in acetone, ether, chloroform, hexane, benzene and other organic solvents; solubility in water at 25°C is 200g/L. Stable in acidic media and unstable in alkaline media. There is no change when stored at 40℃ and 60℃ for 3 months. There is no change when stored in a sealed container at room temperature. It is slightly hygroscopic and corrosive to iron and other metals. Its free alkali melting point is 130.5~131℃.
Functional characteristics of Cartap hydrochloride (15263-52-2)
The insecticide Cartap hydrochloride is a derivative of Nereis toxin. It has a strong stomach poisoning effect. It also has contact killing and certain antifeedant and egg-killing effects. It knocks down pests quickly (but there is often a resurgence phenomenon, so you should pay attention when using it. ), has a longer residual validity period. It has a wide insecticidal spectrum and can be used to control a variety of pests and nematodes such as Lepidoptera, Coleoptera, Hemiptera, Diptera, etc., and has little impact on predatory mites. The toxicological mechanism of cartap is to block the impulse transmission of nerve cell junctions in the central nervous system and paralyze insects. This is different from the mechanism of action of general organophosphorus, organochlorine, and carbamate pesticides.
Production method of Cartap hydrochloride (15263-52-2)
Amination reaction: 40% dimethylamine and 40% alkali solution are dropped into propylene chloride within about 0.5h at 0-15°C. After the dripping is completed, the reaction is maintained at 45°C for 2 hours. Leave to separate and layer to obtain N, N-dihydrogen. Methylamine. The raw material ratio is: propylene chloride: dimethylamine: sodium hydroxide = 1:1.2:1.3 (mol). The yield is 82%. Chlorination reaction: Pour dry hydrogen chloride gas into the allylamine and chloroform solutions at 0 to 10°C. Then vent chlorine gas at 20°C and let it stand to separate the chloroform layer. Then fully dissolve the solid chloride in water and let it stand for 0.5h to remove the residual chloroform. The yield of chlorination product 1-N,N-dimethyl-2,3-dichloropropylamine hydrochloride is 91.32%. The ratio of allylamine to hydrogen chloride and chlorine is 1:1: (1~1.05), and the dosage of chloroform is 250L per thousand moles. In the thiocyanation reaction, the alkali solution is first dropped into the chloride aqueous solution, and then sodium thiosulfate is added dropwise. Then the temperature was raised to 60°C and kept at 60-65°C for 4 hours. Pump the sulfonate into the cyanide kettle, drop the sodium cyanide solution into it at 13-15°C, keep the reaction for 1 hour after the dripping, centrifuge, wash the salt at low temperature, and centrifuge to obtain 2-N, N-dimethyl -1,3-Dithiocyanopropane. The raw material ratio is chloride: sodium thiosulfate: sodium cyanide = 1:2.08:2.3. The dosage of sodium hydroxide is the total acidity of the chloride aqueous solution (mg/mL) × feeding amount (L) × 0.972. Sulfonation temperature is 60℃, time is 4h; cyanation temperature is (13±2)℃, time is 1h. Or it can be obtained by neutralizing 1-N,N-dimethyl-2,3-dichloropropylamine hydrochloride with alkali to form a free base, and then reacting it with thiocyanate in methanol through thiocyanation reaction. Alcoholysis reaction: After mixing thiocyanate and methanol, the temperature is lowered to 0°C, dry hydrogen chloride is introduced, and the temperature is maintained at 0 to 10°C. After the passage, the temperature is raised to 50°C, and the heat preservation reaction is carried out for 3 hours, then the temperature is cooled to 0°C, and then kept for 2 hours. After centrifugal separation, the product is dried and the filtrate is recovered, with a yield of 96%. The raw material ratio for alcoholysis is sulfide: HC1=1:10, and the amount of methanol is 450L/1000mol sulfide.
Industrial synthesis route of Cartap hydrochloride (15263-52-2)
Industrial product borericides are all borerkiller monohydrochloride.
1. Insecticide solution Dissolve insecticide in ethyl chloride
2. Sodium cyanide solution: Dissolve industrial sodium cyanide in water (heat to 30 degrees Celsius) and add liquid caustic soda to adjust the pH to about 10
3. Addition reaction: Cool the prepared insecticidal single solution to 0 degrees, start adding sodium cyanide solution dropwise, and keep the temperature at 0-5 degrees during the dropwise addition. After the reaction, keep the temperature at about 10 degrees for 2 hours ( The molar ratio of sodium cyanide to insecticide is 2.05-2.1), the solution is separated, and the organic phase is transferred to the alcoholization kettle.
5. Hydrogen chloride reaction: Add phosphorus trichloride to the gas generating kettle, lower the temperature to about 10 degrees, slowly add concentrated hydrochloric acid dropwise, and pass the generated hydrogen chloride gas into the alcoholization kettle.
4. For hydrochloric acidification, transfer the reacted ethyl chloride solution into the alcoholization kettle, add a small amount of water (the molar amount of water is 2.5 times the molar amount of insecticide), and add methanol (the molar amount is 3 times the molar amount of insecticide). times), the temperature rise is maintained at around 30 degrees. Introduce the hydrogen chloride gas generated in the gas generating kettle. After the reaction is completed, the mixture is kept warm for 1 hour.
5. Desolvation: Transfer the materials from the alcoholization kettle to the desolvation kettle, turn on the vacuum, and heat up. When the temperature is almost 60 degrees, it is clearly visible in the reaction kettle, indicating that the solvent has been removed. Add a certain amount of water and raise the temperature to 60 degrees until the material is completely dissolved. Dissolve and transfer to crystallization kettle while hot.
6 Crystallization: Cool the transferred material to about 0 degrees, and it can be filtered. The filter cake is borericide monohydrochloride.
How to use Cartap hydrochloride (15263-52-2)
1. Control of rice pests using insecticide Cartap hydrochloride: Use 75-100g of 50% soluble powder per acre for stem borer and stem borer, and spray 40-50kg of water. For rice leaf rollers and rice bracts, use 100-150g of 50% soluble powder per acre and spray 50-60kg of water.
2. Control of vegetable pests using insecticide Cartap hydrochloride. Use 25-50g of 50% soluble powder per acre for diamondback moth and cabbage caterpillar, and spray 50-60kg of water.
3. To control tea tree pests, use the insecticide Cartap hydrochloride to spray evenly with 1000-2000 times of 50% soluble powder.
4. To control sugarcane pests, use 100-125g of 50% soluble powder per acre, spray 50kg of water, or drench sugarcane seedlings with 300kg of water.
5. To control insect pests on fruit trees, use 1000 times of 50% soluble powder and spray evenly.
6. Control of pests in dry grain crops: Use 100g of 50% soluble powder per acre for corn borer, spray it with 100kg of water or evenly pour it into the corn heart. For mole crickets, use 50% soluble powder mixed with wheat bran (1:50) to make poison bait for use.
Cartap hydrochloride (15263-52-2) uses
The insecticide Cartap hydrochloride is a nereitoxin insecticide with strong contact and stomach poisoning effects. It invades the junction of nerve cells and blocks the acetylcholine secreted by the previous nerve cell from being transmitted to the subsequent nerve cell. It prevents nerve cells from being excited and paralyzes the nerves of insects, making them unable to eat, move, stop developing, and lead to death. It has good control effect on stem borer and giant borer, and can also control rice leaf roller, leafhopper, armyworm, etc. It is also effective on diamondback moth and yellow-striped flea beetle. Use 50% soluble powder to spray 1000-1500 times of liquid for rice borer and rice borer. Use 1000 times of liquid for rice bract borer and rice leaf roller. Spray flea beetles, citrus leafminers, onion thrips, etc. with 1,000 times the liquid.
The insecticide Cartap hydrochloride is used as an insecticide. It has the advantages of high efficiency, broad spectrum, low toxicity, low residue, etc., and has multiple effects such as systemic, gastric poisoning, and contact killing. It can control pests such as rice borers, rice leaf rollers, rice bracts, rice leafminers, rice straw ropes, vegetable cabbage caterpillars, diamondback butterflies, pear heartworms, and citrus leafminers. The dosage per mu is 30-50g of the original drug.
The insecticide Cartap hydrochloride is used to control rice borers, rice leaf rollers, rice bracts, rice leaf miners, rice rod flies, vegetable cabbage caterpillars, diamondback butterflies, pear heartworms, citrus leaf miners, etc.
What are the differences between these four organic nitrogen pesticides: Insecticide Molosultap , Insecticide Double, Insecticide Ring, and Cartap hydrochloride (15263-52-2)?
Bisultap
Insecticides Bisultap belong to the Nereisin class of insecticides Molosultap and are a type of nerve poison. After insects come into contact with and feed on the agent, they will become dull, slow in movement, lose the ability to damage crops, stop development, soften the insect body, become paralyzed, and eventually die. Insecticide has a strong systemic effect and can be absorbed and transmitted by the leaves and roots of crops.
②Main preparations. 18% aqueous agent, 45% soluble powder, 3.6% large granules, etc.
③Objectives of prevention and control. Rice borer, leaf roller, rice bract, thrips, leafhopper, planthopper, vegetable cabbage caterpillar, diamondback moth, rapeseed stem borer; corn armyworm, apple aphid, pear star caterpillar, citrus leafminer, Dharma Swallowtail etc.
Molosultap
Insecticides are related to the insecticide Molosultap, which are the disodium salts and the monosodium salts. Molosultap is also a synthetic analog of Nereisin, which is quickly converted into Nereisin or dihydroNereisin when it enters the insect's body. This drug is a competitive inhibitor of acetylcholine. It has strong contact killing, gastric poisoning and systemic conduction effects. It has a good control effect on the larvae of lepidopteran pests. This drug is mainly used to control larvae on sugar cane, rice and other crops. pests.
According to the characteristics of insecticide orders, insecticide Molosultap orders should not be used alone. Since insecticide orders have different action mechanisms with pesticides such as avermectin, chlorantraniliprole, Bacillus thuringiensis, and organophosphorus, it is difficult to mix them with these agents. When combined, it can exert its strong systemic and powerful ovicidal effects, and has a good synergistic effect on the control of stem borer. Therefore, the insecticide can be compounded with abamectin, chlorantraniliprole, etc. Use, or choose compound preparations such as Avi·Insecticide, Insecticide·Chlorantraniliprole.
Control objects: Rice borer, rice borer, leaf roller, cabbage caterpillar, sugarcane borer, corn borer, etc.
Cartap hydrochloride
A derivative of Nereis toxin with broad spectrum, it can be used to control various pests and nematodes such as Lepidoptera, Coleoptera, Hemiptera, Diptera and so on. Little impact on predatory mites. Its toxicological mechanism is to block the transmission of impulses at nerve cell junctions in the central nervous system, paralyzing insects.
②Main preparations. 50% soluble powder, 4% granules.
③Objectives of prevention and control. Cartap hydrochloride can be used to control a variety of pests and nematodes such as Lepidoptera, Coleoptera, Hemiptera, and Diptera, and has little impact on predatory mites.
insecticide ring
The insecticidal ring is a Nerei toxin insecticide Molosultap, which has contact and gastric poisoning effects, as well as certain systemic and fumigation effects, and can kill eggs. The poisonous effect on pests is relatively slow, and those with mild poisoning can sometimes be revived. It disappears quickly in plants, has a short residual period, and leaves very little residue in crops at harvest. The insecticidal ring is effective against Lepidoptera, Coleoptera, and Homoptera pests, and can be used to control a variety of pests on rice, corn, sugar beets, fruit trees, and vegetables. The insecticidal ring has excellent insecticidal effect on thrips, whitefly nymphs and adults, but has poor egg-killing effect and short-lasting effect.
The Molosultap market mainly includes single-dose and Molosultap·acetamiprid, thiamethoxam·Molosultap, spinosad·Molosultap, etc., and the number of registrations is not large.
Control objects: It has a good control effect on Lepidoptera and Coleoptera pests, mainly controlling rice borers (large borers, borer borers, and borer borers), rice bracts, leaf rollers, rice planthoppers, and rice leafhoppers. , tea green leafhopper, tea looper, fruit tree pests such as peach aphid, apple aphid, apple red spider mite, and pear star caterpillar.
Factors affecting the profitability of Cartap hydrochloride (15263-52-2) technical material
One is overcapacity. Cartap hydrochloride is already in the mature stage of the market and has been used in the market for many years, so it is unlikely to experience significant growth. It is predicted that the market demand for feticide technical material will basically remain at 8,000 tons in the next five years, with a fluctuation range of 2% between upper and lower, and the total production capacity has reached 15,000 tons.
The second is the increasing pressure on environmental protection. Since the new environmental protection law was implemented on January 1 this year, various localities have introduced more stringent supervision and penalty measures. With the improvement of environmental standards, the environmental protection costs incurred by production enterprises will increase significantly, which has become very obvious. In 2015, there will be an additional environmental protection cost of more than 8 million yuan. Due to the lack of market for the by-products of insecticides, companies must digest it themselves and have to carry out environmental protection treatment. This alone is expected to cause a loss of 10 million yuan in revenue. The total of the two items has increased compared with previous years. The cost is more than 18 million yuan.
The third is the impact of related industries. Due to the state's shutdown of some severely surplus basic chemical industries, such as the shutdown of some chlor-alkali chemical companies, production capacity has decreased and prices have risen. The cost of the raw materials for feticide has increased significantly and will continue to rise.
Fourth, the pressure for substitute products has increased. From the second half of 2014 to 2015, the sales price of Cartap hydrochloride increased to 78,000-80,000 yuan/ton. Although the short-term price increase brought huge profits to its production companies, it also increased the opportunity for some alternative products to quickly enter the market. . The high price of cartap makes it lose its cost-effective advantage. In contrast, chlorantraniliprole and tetrafluanimid have more cost-effective advantages, and have quickly replaced cartap in many regional markets and become the most cost-effective preparation. Mainly used pesticides for rice pest control, this will reduce the domestic market demand for cartap and insecticide, which will seriously affect the profits of manufacturers. It is estimated that this will be more obvious in the second half of this year and early next year.
Precautions for Cartap hydrochloride (15263-52-2)
1. It is not advisable to apply pesticides during the flowering stage of rice or when the crops are wet by rain and dew. High spray concentrations will also cause phytotoxicity to rice. Cruciferous vegetable seedlings are sensitive to this drug, so be careful when using it.
2. If poisoned, gastric lavage should be performed immediately and seek medical treatment as soon as possible.
3. The insecticide Cartap hydrochloride is highly toxic to silkworms and is prohibited from being used in silkworm areas to prevent the liquid from contaminating mulberry leaves and silkworm chambers.
4. Cruciferous vegetables such as cabbage and cabbage are more sensitive to this agent and are prone to phytotoxicity.
5. A few people have allergic reactions such as skin irritation after coming into contact with the liquid. Do not spray against the wind during field operations, and do not use leaking spray equipment.
Insecticide Cartap hydrochloride (15263-52-2) price
Under normal circumstances, the price of the pesticide Cartap hydrochloride will be affected by raw materials, market environment, research and development costs, etc. If you want to know the latest price of the pesticide Cartap hydrochloride you need, please contact us to initiate an inquiry.
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