Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of imidacloprid powder cas 138261-41-3 in China. Welcome to wholesale bulk high quality imidacloprid powder cas 138261-41-3 for sale here from our factory. Good service and reasonable price are available.
Imidacloprid powder is a nitromethylene internal absorption insecticide, which belongs to the chlorinated nicotinic insecticide, also known as neonicotinic insecticide, with the chemical formula of C9H10ClN5O2. The pure product is white crystal, and the original drug is light yellow crystal with faint smell. It has a broad spectrum, high efficiency, low toxicity and low residue. It is not easy for pests to produce resistance, and has multiple effects such as contact killing, stomach poisoning and internal absorption.
The normal conduction of the central nervous system is blocked after the pest contacts with the drug, which makes it paralyzed and dead. The product has good quick effect. It has high prevention effect one day after the drug is taken, and the residue period is about 25 days. The efficacy is positively correlated with temperature, and high temperature has a good insecticidal effect.
|
Chemical Formula |
C9H10ClN5O2 |
|
Exact Mass |
255 |
|
Molecular Weight |
256 |
|
m/z |
255 (100.0%), 257 (32.0%), 256 (9.7%), 258 (3.1%), 256 (1.8%) |
|
Elemental Analysis |
C, 42.28; H, 3.94; Cl, 13.87; N, 27.39; O, 12.52 |
|
|
|
As a mainstream systemic neonicotinoid insecticide, imidacloprid powder boasts excellent systemic translocation, broad-spectrum insecticidal activity and convenient powder formulation. It is widely applied in diverse scenarios including field crop farming, fruit and vegetable cultivation, gardening and flowers, seed treatment, household green plants, and supporting pest control for small-scale breeding. It serves as the core agent for the management of piercing-sucking pests. The powder formulation can be diluted with water for spraying, mixed with soil or blended with seeds, compatible with multiple application methods and suitable for most cash crops and landscape plants.
Function characteristics
Efficient insecticidal: Imidacloprid has significant control effects on various pests, quickly reducing the number of pests and protecting crops. The product has good quick acting effect, with a high preventive effect within one day after medication, and a residual period of about 25 days. The efficacy of drugs is positively correlated with temperature, and when the temperature is high, the insecticidal effect is better.
Broad spectrum: Imidacloprid can control pests on various crops and has a wide range of applications. It is not only effective against piercing sucking mouthparts pests such as aphids, planthoppers, whiteflies, leafhoppers, thrips, etc., but also has a certain effect on Coleoptera, Diptera, and Lepidoptera pests such as leaf miner, rice weevil, and leaf miner.
Low toxicity: Imidacloprid has relatively low toxicity to mammals and poses minimal harm to humans and the environment when used. Therefore, it is widely used in agricultural production.
Intrinsic absorption: Imidacloprid has systemic absorption and can be absorbed by plants to conduct electricity within the plant, thereby also acting against pests hidden inside the plant. This characteristic makes imidacloprid more efficient in controlling pests.
Long lasting effect: A single application of imidacloprid can continuously exert its insecticidal effect for a longer period of time, reducing the frequency and cost of application. This is an important advantage for agricultural producers as it can reduce their operating costs.
Good stability: Imidacloprid can maintain good chemical stability and efficacy under different environmental conditions. This enables it to perform well under various climatic and soil conditions.
High cost-effectiveness: Imidacloprid is relatively affordable and has a high cost-effectiveness in agricultural production. This makes it the preferred insecticide for many agricultural producers.
Easy to use: Imidacloprid comes in a variety of formulations, including wettable powders, suspensions, emulsions, etc., making it easy to choose and operate according to different needs and usage scenarios.
Prevention and control targets
The product is most widely applied in the cultivation of field grain crops, mainly for pest control in rice, wheat and corn. For rice, diluted the product is sprayed on foliage during the growing season to target rice planthoppers, rice leafhoppers and aphids. After being absorbed by stems and leaves, the pesticide translocates to the base of rice clumps and continuously kills pests hiding on submerged stalks, offering a residual efficacy period of over 20 days. Before wheat sowing, seeds are dressed with the powder.
The pesticide adheres to seed coats and is absorbed via root systems to translocate into seedlings, providing long-term defense against wheat aphids and small brown planthoppers at the seedling stage while lowering the risk of viral disease transmission. Seed dressing for corn controls thrips and aphids in seedling stages, preventing leaf curling and stunted growth caused by piercing-sucking damage to young plants. Seed dressing with powder is a straightforward process requiring no sophisticated equipment, making it suitable for individual smallholders and large-scale planting bases alike.
Fruits and vegetables constitute another major application sector for the product. Vegetables include Chinese cabbage, cucumber, tomato, chili and others, while fruit trees cover citrus, apple, grape and peach. Diluted spray applications are conducted on vegetables at seedling and fruit-setting stages, specifically targeting aphids, whiteflies, Liriomyza larvae and thrips. These pests feed on leaf sap, leading to yellowing and curling of foliage alongside viral transmission. Imidacloprid delivers both contact and stomach poison activity.
Dilute solutions of the powder at low concentrations rarely trigger phytotoxicity, complying with pre-harvest interval management standards for fruits and vegetables. Light sprays are applied to fruit trees around spring shoot emergence and blooming periods to control psyllids, green peach aphids and young scale insect nymphs. When mixed with water, the powder forms evenly atomized droplets that penetrate leaf undersides where pests reside. Compared with emulsifiable concentrates, it is less irritating and unlikely to scorch tender young flowers and fruits.
This powder is extensively used in landscaping, green belts and ornamental flowers, applicable to municipal street trees, green belt shrubs, greenhouse cut flowers and household potted plants. In cases of large-scale pest outbreaks on outdoor greenery, high-pressure spraying of diluted powder rapidly suppresses leafhoppers and aphids. Low-dose sprays for flower maintenance curb rose aphids and chrysanthemum whiteflies without harming flower petals. For soil pests in potted plants, a small amount of powder can be blended into potting soil. Absorption by plant roots establishes long-lasting protection and eliminates migratory tiny piercing-sucking insects living in potting media. The powder poses minimal contamination risks to indoor living spaces and allows safer storage and handling.
Seed coating and dressing represent a unique and vital application exclusive to powder formulations, usable for grain, vegetable and flower seeds. Imidacloprid powder is mixed with clean water to form a pesticide slurry, which uniformly coats seeds prior to air-drying and sowing. The pesticide translocates upward through crop roots, creating an inherent insecticidal protective layer on plants throughout the seedling phase. This drastically reduces the frequency of foliar sprays and labor costs, while mitigating risks of bee exposure from aerial pesticide applications, aligning with eco-friendly and simplified cultivation systems.
Small volumes of the powder are additionally deployed for auxiliary pest control in small-scale agriculture and forestry, including seedling protection in nurseries and pest management for medicinal herb cultivation. Clear standardized application protocols must be followed in practical use: pesticide applications on blooming crops should avoid hours of peak bee activity; dilution ratios must be strictly observed, and mixing with strongly alkaline pesticides is prohibited.
Pre-harvest intervals shall be respected for vegetables and fruits to avoid excessive pesticide residues. Protective gear is mandatory during soil mixing and seed dressing operations to prevent inhalation of powder dust.
Overall, the powder features flexible application methods and compatibility with a broad spectrum of crops, combining fast-acting insecticidal effects with long-term protective performance. It holds irreplaceable practical value in modern agriculture, landscaping and domestic planting scenarios.
During the process of growing flowers, insect problems may often trouble you. These small organisms may cause serious damage to your plants and even lead to their death. At this point, imidacloprid can play its important role. Imidacloprid is an effective insecticide with targeted effects on flowers and insects.
Mechanism of action
It is a new type of nitromethylene insecticide, characterized by high efficiency, low toxicity, and low residue. It can act on the nervous system of insects, interfere with their transmission mechanisms, and cause insect death. Imidacloprid has minimal damage to plants and does not have a significant impact on plant growth when used.
Usage method
1. Correct use according to the instructions:
When using, strictly follow the instructions and dosage in the manual. Adjust the usage based on the size of the plants and the severity of pest infestations. Excessive use may cause damage or even death to plants.
2. Regular inspection:
After use, the growth status of plants should be checked regularly. If the pest problem does not improve or worsens, the use of imidacloprid should be immediately stopped and other solutions sought.
3. Combination of multiple methods:
Although it is an effective insecticide, relying solely on imidacloprid may lead to insect resistance. Therefore, other prevention and control methods such as biological control, physical control, etc. should be combined to comprehensively address the problem of flower pest infestations.
Human exposure and toxicity:
The most common clinical symptoms include rash, difficulty breathing, headache, eye tears, nausea, itching, dizziness, increased saliva secretion, vomiting, numbness, and dry mouth. A case was reported where a worker splashed imidacloprid into the eyes. The clinical symptoms are a burning sensation in the eyes and corneal abrasions. The intramuscular injection blood drug concentrations found in the two death cases were 12.5 and 2.05 ug/mL, respectively. The damage induced by imidacloprid (IM) in HepG2 cells is caused by the fragmentation effect of this insecticide.
Animal research:
IM (purity, 94.2%) does not irritate the eyes or skin of rabbits, nor does it make the skin of guinea pigs sensitive. Single dose oral intramuscular injection has moderate toxicity in rats and mice. Behavioral and respiratory signs, movement disorders, eyelid stenosis, transient tremors, and spasms were observed in rats and mice treated orally at doses greater than or equal to 200 mg/kg body weight and/or greater than or equal to/71 mg/kg body weight, respectively.
Clinical symptoms reverse within 6 days. In chronic experiments conducted in rats, the liver was the main target organ, and only hepatic cell hypertrophy and sporadic cell necrosis were observed in high-dose males. At the end of the study, liver pathology was mild and completely reversible during the recovery period. Male rats treated with IM showed histopathological changes in the testes and epididymis. In developmental studies of rats, a high proportion of male fetuses were observed, and an increased incidence of wavy ribs was observed.In a study of developing rabbits, high-dose fertility was reduced based on observed miscarriage, total litter product absorption, and increased post implantation losses due to increased late stage absorption.
However, this dosage level also leads to weight loss and weight gain, and increases mortality rates.
Early developmental exposure to IM has both early and sustained effects on the neurobehavioral function of zebrafish. Diaper rats with 170 mg/kg intramuscular injection, and measure chromosomal structural abnormalities, abnormal cells, and mitotic index under a microscope in bone marrow cells. Male rats are more susceptible to the genotoxic effects of imidacloprid powder.
The impact of IM on beneficial insects such as bees is still controversial. Once nectar with IM traces flows into the hive for distribution, it may damage indoor duties and have a negative impact on bee colony performance. When adult worker bees raised in the laboratory were treated with sublethal doses of IM, TUNEL technology was used to detect neuronal apoptosis for DNA labeling.
The behavioral effects of IM and 5-OH-IM were studied using olfactory conditions with a long nose extension response during two periods of the year. The learning performance of winter bees that survived long-term treatment with IM and 5-OH-IM decreased. The lowest concentration of IM effect was observed in summer bees (12ug/kg), lower than in winter bees (48 ug/kg), indicating that summer bees are more sensitive to bee behavior compared to winter bees.
We studied the oral acute and chronic toxicity of IM and its main metabolites (5-hydroxyimidacloprid, 4,5-dihydroxyimidacloprid, nitroimidacloprid, 6-chloronicotinic acid, olefins, and urea derivatives) in bees. Intramuscular injection or acute toxicity of its metabolites can lead to rapid onset of neurotoxic symptoms, such as hyperresponsiveness, hyperactivity, and tremors, and result in delayed response and activity. Compared to untreated bee colonies, the colonies of Bumblebee (Bombusterrestris audak) exposed to IM exhibit defects in colony growth and nest condition.
7mL H2O, 22.8g 3-methylpyridine, 80mL CHCl3 and 1.4g phosphomolybdic acid were added to the reaction bottle in turn, mixed uniformly, heated to 75 °C, 47g 30 % H2O2 was added dropwise, the reaction was continued for 6h, benzene was removed, dehydrated, 50mL CHCl3 was added, filtered, desolved under reduced pressure to obtain brown liquid, cooled to 20 °C and turned into light brown solid, the yield was more than 90 %.
0.25 mol ( 1 ), 0.37 mol triethylamine and 250 mL CH2Cl2 were uniformly mixed, and phthaloyl chloride was added dropwise under the protection of nitrogen. The reaction was carried out for 2 h, and the filtrate was washed with CH2Cl2. The filtrate was dedissolved and cooled to pH 6. The distillate was separated from the oil layer, extracted from the water layer, combined with the oil layer, dried and dissolved to give a colorless to light yellow oily liquid of 25.9 g, yield 76 %.
The last product ( 2 ) 0.15mol, benzene 8mL mixed, dropwise add benzene solution containing 0.1mol SO2Cl2 at 50 °C, dropwise finish 2h, heating reflux 4h, desolvation. Yield 70 %.
Acetonitrile 10mL, N-nitroimidazolid-2-ylamine ( 5 ) 0.15mol potassium carbonate 7.2g, CsCl a little mixed, dropwise add 2-chloro-5-chloromethyl pyridine ( 3 ) 0.1mol acetonitrile solution, heating reflux reaction 5h, filtration, with acetonitrile to wash the filter residue, combined filtrate, desolvation to brown solids, yield 90 %.
Imidacloprid powder can also be prepared by the following method : Using toluene as solvent, N- ( 2-chloro-5-pyridylmethyl ) ethylidenediamine reacted with cyanogen bromide at room temperature. The resulting cyclization product was added to concentrated sulfuric acid at low temperature, and then added fuming nitric acid dropwise, reacted at 0 °C for 2h to obtain imidacloprid.
faq
Why was imidacloprid banned?
In 2022 the United States Environmental Protection Agency (EPA) concluded that Imidacloprid is likely to adversely affect 79 percent of federally listed endangered or threatened species and 83 percent of critical habitats.
How harmful is imidacloprid to humans?
A review of the available literature indicates that imidacloprid poisoning can involve gastrointestinal, cardiorespiratory, and nervous systems or it can be multisystem and can be life threatening. Treatment of imidacloprid poisoning largely remains supportive in the absence of effective antidote.
Is imidacloprid poisonous to dogs?
In a 13-week study in dogs, oral doses of imidacloprid ≥15 mg/kg produced tremors. Other clinical signs with sublethal dose exposure to imidacloprid may include dilated or pinpoint pupils, staggering gait, salivation, trembling, spasms, and hypothermia. At lethal doses, death may occur within 4 hours.
Is imidacloprid legal in the US?
Soil drench pesticide products containing imidacloprid will no longer be allowed for use by consumers.
How long does imidacloprid last in dogs?
This long-acting medication may last up to 4–6 weeks and may last longer in pets with kidney or liver disease.
What is the strongest flea killer for dogs?
Advantage® II for Dogs and Cats
This topical treatment uses pesticides to kill and repel a variety of pests including fleas. It is known for being incredibly fast-acting as it kills all adult fleas within 12 hours of the first application.
Hot Tags: imidacloprid powder cas 138261-41-3, suppliers, manufacturers, factory, wholesale, buy, price, bulk, for sale, pure benzocaine powder, epinephrine powder, Chrysophanic Acid CAS 481 74 3, Octreotide Acetate Powder, Tetrahydrobiopterin BH4 Powder, Cyproheptadine hydrochloride sesquihydrate