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Bifenthrin structure

Bifenthrin
Bifenthrin is synthetic pyrethroid insecticide with biochemical origins in the natural insecticide pyrethrum. It is a waxy solid with a color ranging from an off-white to a pale tan, and with a slightly sweet odor. It is almost insoluble in water. Bifenthrin is used for the control of borers and termites in timber, insect pests in agricultural crops (bananas, apples, pears, ornamentals) and turf, as well as for general pest control (spiders, ants, fleas, flies, mosquitoes). Due to its high toxicity to aquatic organisms, it is listed as a restricted use pesticide. It has a very low solubility in water and tends to bind to soil, which minimizes runoff into water sources. It is marketed as Talstar, Bifenthrine, Brigade, Capture, Torant, Zipak, FMC 54800, and OMS3024. View more+
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1. Names and Identifiers
1.1 Name
Bifenthrin
1.2 Synonyms
(1α,3α(Z))(±)(2-methyl(1,1′-biphenyl)-3-yl)methyl-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcy-clopropanecarhoxylate; [1alpha,3alpha(z)]-(+-)-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl; 2-methylbiphenyl-3-ylmethyl-(z)-(1rs)-cis-3-(2-chloro-3,3,3-trifluoroprop-1-en; 2-methylbiphenyl-3-ylmethyl(z)-(1rs,3rs)-3-(2-chloro-3,3,3-trifluoroprop-1-en; Biphenthrin; Brigade; Brookade; CAPTURE; fmc54800; fmc-54800; fmc58000; TALSTAR;
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1.3 CAS No.
82657-04-3
1.4 CID
54901
1.5 EINECS
617-373-6
1.6 Molecular Formula
C23H22ClF3O2
1.7 Inchi
InChI=1S/C23H22ClF3O2/c1-14-16(10-7-11-17(14)15-8-5-4-6-9-15)13-29-21(28)20-18(22(20,2)3)12-19(24)23(25,26)27/h4-12,18,20H,13H2,1-3H3
1.8 InChkey
OMFRMAHOUUJSGP-UHFFFAOYSA-N
1.9 Canonical Smiles
CC1=C(C=CC=C1C2=CC=CC=C2)COC(=O)C3C(C3(C)C)C=C(C(F)(F)F)Cl
1.10 Isomers Smiles
CC1=C(C=CC=C1C2=CC=CC=C2)COC(=O)C3C(C3(C)C)C=C(C(F)(F)F)Cl
2. Properties
2.1 Solubility
0.01 g/100 mL
2.2 Appearance
Bifenthrin is an off-white to pale tan waxy solid with a very faint slightly sweet odor. Used as a broad spectrum insecticide.
2.3 Storage
Bifenthrin should be kept stored in a cool, dry, well-ventilated place away from heat, open flame or hot surfaces. It should only be stored in its original containers and should not be contaminated with other pesticides, fertilizers, water, food, or feed by storage or disposal
2.4 Chemical Properties
Bifenthrin is a member of the pyrethroid chemical class. It is an insecticide and acaricide. Bifenthrin is off-white to pale tan waxy solid granules with a faint, musty odor and slightly sweet smell. Bifenthrin is soluble in methylene chloride, acetone, chloroform, ether, and toluene, and is slightly soluble in heptane and methanol. It is slightly combustible and support combustion at elevated temperatures. Thermal decomposition and burning may form toxic by-products, such as carbon monoxide, carbon dioxide, hydrogen chloride, and hydrogen fl uoride. Bifentrin treatment affects the nervous system and causes paralysis in insects.
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2.5 Color/Form
Light brown viscous oil
Viscous liquid; crystaline or waxy solid
Off-white to pale tan waxy solid
2.6 Odor
Very faint, slightly sweet odor
2.7 Water Solubility
H2O: 0.01 g/100 mL
2.8 Stability
Stable under recommended storage conditions.
2.9 StorageTemp
0-6°C
3. Use and Manufacturing
3.1 Agricultural Uses
Insecticide, Acaricide: A broad-spectrum insecticide. Registered to controlcone worms, seed bugs, seed worms and other insects andmites on rangeland, forests and right-of-ways. It is alsoused to control household and lawn pests. A U.S. EPA restrictedUse Pesticide (RUP).
3.2 Definition
ChEBI: A carboxylic ester obtained by formal condensation of cis-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylic acid and [(2-methyl-1,1'-biphenyl)-3-yl]methanol.
3.3 Description

Bifenthrin is a member of the pyrethroid chemical class. It is an insecticide and acaricide. Bifenthrin is off-white to pale tan waxy solid granules with a faint, musty odor and slightly sweet smell. Bifenthrin is soluble in methylene chloride, acetone, chloroform, ether, and toluene, and is slightly soluble in heptane and methanol. It is slightly combustible and support combustion at elevated temperatures. Thermal decomposition and burning may form toxic by-products, such as carbon monoxid

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3.4 Methods of Manufacturing
Preparation method 1 is prepared by reacting 2-phenylbenzoic acid with SOCl2 to obtain 2-phenylbenzoyl chloride, and then reacting with dimethylformamide to obtain the corresponding 2-phenylbenzamide, which is obtained by reduction with lithium aluminum hydride 2-phenyldimethylbenzylamine.?The corresponding ammonium salt is prepared by reacting 2-phenyldimethylbenzylamine with CH3I, and then reacted with ethyl chloroformate after isomerization to prepare 2-methyl-3-phenylchlorobenzyl.?Finally, bifenthrin was prepared by refluxing with the corresponding acid in the presence of KOH in acetonitrile for 16h.?The preparation method 2 is prepared by condensation, cyclization and dehydrochlorination of 3, 3-dimethyl-1-enopentanoic acid 2-methyl-3-phenylbromobenzyl.
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3.5 Potential Exposure
A broad spectrum pyrethroid secticide/acaricide used to control cone worms, seed bugs, seedworms and other insects and mites in forests, on rangeland,and right-of-ways. It is also used to control household andlawn pests. A United States Environmental ProtectionAgency Restricted Use Pesticide (RUP).
3.6 Usage
Third generation synthetic pyrethroid. Insecticide, acaricide.
3.7 Waste Disposal
Incineration would be aneffective disposal procedure where permitted. If an efficientincinerator is not available, the product should be mixedwith large amounts of combustible material and contactwith the smoke should be avoided. In accordance with40CFR165, follow recommendations for the disposal ofpesticides and pesticide containers. Bifenthrin Preparation Products And Raw materials Preparation Products
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4. Safety and Handling
4.1 Octanol/Water Partition Coefficient
log Kow = >6.00
4.2 Other Preventative Measures
Skin that becomes contaminated with /pyrethrum/ should be promptly washed or showered with soap or mild detergent and water. /Pyrethrum/
Clothing contaminated with /pyrethrum/ should be placed in closed containers for storage until provision is made for the removal of /pyrethrum/ from the clothing. /Pyrethrum/
Respirators may be used when engineering and work practice controls are not technically feasible, when such controls are in the process of being installed, or when they fail or need to be supplemented. Respirators may also be used for operations which require entry into tanks or closed vessels, and in emergency situations. /Pyrethrum/
Employees who handle /pyrethrum/ ... should wash their hands thoroughly with soap or mild detergent and water before eating, smoking, or using toilet facilities. /Pyrethrum/
Avoid contact with skin. Keep out of any body of water. Do not contaminate water by cleaning of equipment or disposal of waste. Do not reuse empty container. Destroy it by perforating or crushing. /Pyrethrum/
Workers should wash: Promptly when skin becomes contaminated. /Pyrethrins/
Work clothing should be changed daily: If it is reasonably probable that the clothing may be contaminated. /Pyrethrins/
Remove clothing: Promptly if it is non-impervious clothing that becomes contaminated. /Pyrethrins/
SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
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4.3 DisposalMethods
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Incineration would be an effective disposal procedure where permitted. ... /Pyrethrin products/
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4.4 Fire Fighting Procedures
Use carbon dioxide, foam, or dry chemical /on fires involving pyrethroids/. /Pyrethrum/
Fire-fighting: Self-contained breathing apparatus with a full facepiece operated in pressure-demand or other positive-pressure mode. /Pyrethrum/
4.5 Formulations/Preparations
USEPA/OPP Pesticide Code 128825; Trade Names: FMC 54800, Capture, FMC 54800 technical, Talstar, Brigade, Biflex.
Emulsifiable concentrate; suspension concentrate; wettable powder; ultra-low volume liquid; granule.
Material contains greater than/equal to 97% cis-isomer and less than/equal to 3% trans-isomer.
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4.6 Incompatibilities
May react violently with strong oxidizers,bromine, 90% hydrogen peroxide, phosphorustrichloride, silver powders or dust. Incompatible with silvercompounds, lime, and ordinary soaps. Mixture with somesilver compounds forms explosive salts of silver oxalate.
4.7 Protective Equipment and Clothing
Employees should be provided with and required to use dust- and splash-proof safety goggles where /pyrethroids/ ... may contact the eyes. /Pyrethroids/
Employees should be provided with and be required to use impervious clothing, gloves, and face shields (eight-inch minimum). /Pyrethroids/
Wear appropriate equipment to prevent: Repeated or prolonged skin contact. /Pyrethrum and pyrethrins/
Wear eye protection to prevent: Reasonable probability of eye contact. /Pyrethrins/
Recommendations for respirator selection. Max concn for use: 50 mg/cu m: Respirator Classes: Any chemical cartridge respirator with organic vapor cartridge(s) in combination with a dust, mist, and fume filter. May require eye protection. Any supplied-air respirator. May require eye protection. Any self-contained breathing apparatus. May require eye protection. /Pyrethrins/
Recommendations for respirator selection. Max concn for use: 125 mg/cu m: Respirator Classes: Any supplied-air respirator operated in a continuous flow mode. May require eye protection. Any powered, air-purifying respirator with organic vapor cartridge(s) in combination with a dust, mist, and fume filter. May require eye protection. /Pyrethrins/
Recommendations for respirator selection. Max concn for use: 250 mg/cu m: Respirator Classes: Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s) in combination with a high-efficiency particulate filter. Any self-contained breathing apparatus with a full facepiece. Any supplied-air respirator with a full facepiece. Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s) in combination with a high-efficiency particulate filter. May require eye protection. /Pyrethrins/
Recommendations for respirator selection. Max concn for use: 5,000 mg/cu m: Respirator Class: Any supplied-air respirator with a full facepiece and operated in a pressure-demand or other positive pressure mode. /Pyrethrins/
Recommendations for respirator selection. Condition: Emergency or planned entry into unknown concn or IDLH conditions: Respirator Classes: Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure mode. Any supplied-air respirator with a full face piece and operated in pressure-demand or other positive pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive pressure mode. /Pyrethrins/
Recommendations for respirator selection. Condition: Escape from suddenly occurring respiratory hazards: Respirator Classes: Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having a high-efficiency particulate filter. Any appropriate escape-type, self-contained breathing apparatus. /Pyrethrins/
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4.8 Reactivities and Incompatibilities
Incompatibility: Strong oxidizers. /Pyrethrins/
... Incompatible with lime & ordinary soaps because acids & alkalies speed up processes of hydrolysis. /Pyrethrins/
4.9 Skin, Eye, and Respiratory Irritations
Immediately irritating to the eye. /Pyrethrins/
The chief effect from exposure ... is skin rash particularly on moist areas of the skin. ... May irritate the eyes.
4.10 Safety

Hazard Codes:?HarmfulXn,?DangerousN,?FlammableF
Risk Statements: 20/21/22-50/53-36-11-36/37/38?
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.?
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.?
R36:Irritating to eyes.?
R11:Highly flammable.?
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 13-60-61-36/37-16-36-26?
S13:Keep away from food, drink and animal foodstuffs.?
S60:This material and its container must be disposed of as hazardous waste.?
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.?
S36/37:Wear suitable protective clothing and gloves.?
S16:Keep away from sources of ignition.?
S36:Wear suitable protective clothing.?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 2588
RTECS: GZ1227800
HazardClass: 6.1(b)
PackingGroup: III
Hazardous Substances Data: 82657-04-3(Hazardous Substances Data)

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4.11 Specification

?Bifenthrin (CAS NO.82657-04-3) is also named as (1alpha,3alpha(Z))-(+-)-(2-Methyl(1,1'-biphenyl)-3-yl)methyl 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate ; (1alpha,3alpha(Z))-(+-)-3-(2-Chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid (2-methyl(1,1'-biphenyl)-3-yl)methyl ester ; 2-Methylbiphenyl-3-ylmethyl (Z)-(1RS,3RS)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate ; 2-Methylbiphenyl-3-ylmethyl-(Z)-(1RS)-cis-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate ;
Bifenthrine ; Bifenthrine [ISO-French] ; Biphenate ; Biphenthrin ; Biphentrin ; Brigade ; CCRIS 9249 ; Capture ; Caswell No. 463F ; EPA Pesticide Chemical Code 128825 ; FMC 54800 ; FMC 58000 ; HSDB 6568 ; Talstar?.?Pure product of Bifenthrin (CAS NO.82657-04-3) is?off-white solid. It can be dissolved in acetone (1.25kg / L), chloroform, dichloromethane, toluene, ethyl ether, slightly soluble in heptane and methanol and insoluble in water.

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4.12 Toxicity
Oral-Rat LD50: 54.5 mg/kg
5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 2

Skin sensitization, Category 1B

Acute toxicity - Inhalation, Category 3

Carcinogenicity, Category 2

Specific target organ toxicity \u2013 repeated exposure, Category 1

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H300 Fatal if swallowed

H317 May cause an allergic skin reaction

H331 Toxic if inhaled

H351 Suspected of causing cancer

H372 Causes damage to organs through prolonged or repeated exposure

H410 Very toxic to aquatic life with long lasting effects
Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P272 Contaminated work clothing should not be allowed out of the workplace.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P271 Use only outdoors or in a well-ventilated area.

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P273 Avoid release to the environment.

Response

P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor/\u2026

P321 Specific treatment (see ... on this label).

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P333+P313 If skin irritation or rash occurs: Get medical advice/attention.

P362+P364 Take off contaminated clothing and wash it before reuse.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P311 Call a POISON CENTER/doctor/\u2026

P308+P313 IF exposed or concerned: Get medical advice/ attention.

P314 Get medical advice/attention if you feel unwell.

P391 Collect spillage.

Storage

P405 Store locked up.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

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6. NMR Spectrum
13C NMR : Predict  
1H NMR : Predict  
Predict 1H proton NMR  
Mass spectrum (electron ionization)  
7. Synthesis Route
82657-04-3Total: 4 Synthesis Route
 
107686-48-6
107686-48-6
 
82657-04-3
82657-04-3 310 Suppliers
 
107489-30-5
107489-30-5
 
82657-04-3
82657-04-3 310 Suppliers
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8. Precursor and Product
precursor:
354-58-5
354-58-5
107686-51-1
107686-51-1
107489-30-5
107489-30-5
107686-48-6
107686-48-6
9. Computed Properties
10.Other Information
Merck
13,1215
Description
Bifenthrin is synthetic pyrethroid insecticide with biochemical origins in the natural insecticide pyrethrum. It is a waxy solid with a color ranging from an off-white to a pale tan, and with a slightly sweet odor. It is almost insoluble in water. Bifenthrin is used for the control of borers and termites in timber, insect pests in agricultural crops (bananas, apples, pears, ornamentals) and turf, as well as for general pest control (spiders, ants, fleas, flies, mosquitoes). Due to its high toxicity to aquatic organisms, it is listed as a restricted use pesticide. It has a very low solubility in water and tends to bind to soil, which minimizes runoff into water sources. It is marketed as Talstar, Bifenthrine, Brigade, Capture, Torant, Zipak, FMC 54800, and OMS3024.
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References
[1] http://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/public/?event=activesubstance.detail&language=DE&selectedID=1026
[2] http://apvma.gov.au/node/12396
[3] http://www.ehrf.info/wp-content/uploads/2012/03/Bifenthrin-Feb-2012.pdf
Description
Bifenthrin is a synthetic pyrethroid insecticide/miticide/acaricide. Bifenthrin is off-white to pale tan waxy solid granules with a faint, musty odour and a slightly sweet smell. Bifenthrin is soluble in methylene chloride, acetone, chloroform, ether, and toluene and slightly soluble in heptane and methanol. It is slightly combustible and support combustion at elevated temperatures. Thermal decomposition and burning may form toxic byproducts such as carbon monoxide, carbon dioxide, hydrogen chloride, and hydrogen fluoride. Bifenthrin treatment affects the nervous system and causes paralysis in insects.
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Chemical Properties
Bifenthrin is a member of the pyrethroid chemical class. It is an insecticide and acaricide. Bifenthrin is off-white to pale tan waxy solid granules with a faint, musty odor and slightly sweet smell. Bifenthrin is soluble in methylene chloride, acetone, chloroform, ether, and toluene, and is slightly soluble in heptane and methanol. It is slightly combustible and support combustion at elevated temperatures. Thermal decomposition and burning may form toxic by-products, such as carbon monoxide, carbon dioxide, hydrogen chloride, and hydrogen fl uoride. Bifentrin treatment affects the nervous system and causes paralysis in insects.
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Chemical Properties
White Solid
Chemical Properties
Off white to pale tan waxy substance. Faint, sweet odor.
Uses
Third generation synthetic pyrethroid. Insecticide, acaricide.
Uses
Bifenthrin controls foliar insect pests and some mites on a range of crops including cereals, citrus, cotton, fruit and vegetables.
Uses
Insecticide, acaricide.
Definition
ChEBI: A carboxylic ester obtained by formal condensation of cis-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylic acid and [(2-methyl-1,1'-biphenyl)-3-yl]methanol.
Health Hazard
Bifenthrin is moderately toxic to species of mammals when ingested. Exposures to large doses of bifenthrin cause poisoning with symptoms that include, but are not limited to, incoordination, tremor, salivation, vomiting, diarrhea, and irritability to sound and touch. Exposures to bifenthrin through skin absorption and/or inhalation of dust cause adverse health effects. On contact with bifenthrin, occupational workers develop adverse health effects that include skin sensations, rashes, numbness, and a burning and tingling type of effect. As a pyrethroid poison, bifenthrin disturbs the electrical impulses in nerves, over-stimulating nerve cells, causing tremors and eventually causing paralysis. The skin-related health effects were found to be reversible and subside after a brief period of time and stoppage of further exposures to bifenthrin. Although bifenthrin causes no infl ammation or irritation on human skin, it can cause a tingling sensation that lasts about 12 h. Bifenthrin has caused no symptoms of irritation to rabbits’ eyes. The US EPA has classifi ed bifenthrin as toxicity class II, meaning moderately toxic
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Agricultural Uses
Insecticide, Acaricide: A broad-spectrum insecticide. Registered to control cone worms, seed bugs, seed worms and other insects and mites on rangeland, forests and right-of-ways. It is also used to control household and lawn pests. A U.S. EPA restricted Use Pesticide (RUP).
Trade name
BIFLEX?; BISTAR?; BRIGADE?; CAPTURE? Bifenthrin; DISCIPLINE?; DOUBLE THREAT?; EMPOWER?; FMC? 54800; FMC? 58000; TALSTAR?; TALSTAR LAWN & TREE?; TORANT?; ZIPAK?
Potential Exposure
A broad spectrum pyrethroid secticide/ acaricide used to control cone worms, seed bugs, seed worms and other insects and mites in forests, on rangeland, and right-of-ways. It is also used to control household and lawn pests. A United States Environmental Protection Agency Restricted Use Pesticide (RUP).
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Metabolic pathway
When mites are administered 14C-bifenthrin either by injection or by contact, bifenthrin is efficiently metabolized by the mites and the metabolites identified arise from the combination of ester cleavage, oxidation, and conjugation reactions and are the 4'-hydroxy derivative of the ester, the primary ester cleavage products, the acid, and its 4'-hydroxy derivative from the alcohol moiety, as well as several unidentified metabolites.
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storage
Bifenthrin should be kept stored in a cool, dry, well-ventilated place away from heat, open flame or hot surfaces. It should only be stored in its original containers and should not be contaminated with other pesticides, fertilizers, water, food, or feed by storage or disposal
Shipping
UN2588 Pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1—Poisonous materials, Technical Name Required. UN3349 Pyrethroid pesticide, solid toxic, Hazard Class: 6.1; Labels: 6.1—Poisonous material.
Degradation
Bifenthrin is stable for 21 days in the pH range 5-9 at 21°C but it is labile at higher pH. It has a DT50 of 225 days in natural daylight and can therefore be regarded as relatively photochemically stable (PSD).
Toxicity evaluation
The solubility of bifenthrin in water is relatively low at 0.1 mg l-1. Furthermore, the water octanol coefficient (Kow) is 1×106 and results in bifenthrin binding to organic substrates. The soil sorption coefficients range between 1.31×105 and 3.02×105, indicating relatively tight binding to soil particles. They also tend to bind to organic particulate materials in the water column. The Kow of bifenthrin may explain the bioconcentration factors (BCFs) observed in some animals, especially fish. For example, fathead minnows (Pimephales promelas) exposed to 0.0037 mg l1 bifenthrin had BCFs of 21 000 after 127 days and 28 000 after 254 days of exposure. Hydrolysis of bifenthrin in buffered water occurs between pH 5 and 9. Photolysis studies in water and soil found that the half-lives were 408 and 96.9 days, respectively. The aerobic soil half-life was 96.3 days and the anaerobic halflife, 425 days.
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Incompatibilities
May react violently with strong oxidizers, bromine, 90% hydrogen peroxide, phosphorus trichloride, silver powders or dust. Incompatible with silver compounds, lime, and ordinary soaps. Mixture with some silver compounds forms explosive salts of silver oxalate.
Waste Disposal
Incineration would be an effective disposal procedure where permitted. If an efficient incinerator is not available, the product should be mixed with large amounts of combustible material and contact with the smoke should be avoided. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers.
View all
Storage Conditions
Preparation method 1 is prepared by reacting 2-phenylbenzoic acid with SOCl2 to obtain 2-phenylbenzoyl chloride, and then reacting with dimethylformamide to obtain the corresponding 2-phenylbenzamide, which is obtained by reduction with lithium aluminum hydride 2-phenyldimethylbenzylamine.?The corresponding ammonium salt is prepared by reacting 2-phenyldimethylbenzylamine with CH3I, and then reacted with ethyl chloroformate after isomerization to prepare 2-methyl-3-phenylchlorobenzyl.?Finally, bifenthrin was prepared by refluxing with the corresponding acid in the presence of KOH in acetonitrile for 16h.?The preparation method 2 is prepared by condensation, cyclization and dehydrochlorination of 3, 3-dimethyl-1-enopentanoic acid 2-methyl-3-phenylbromobenzyl.
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Storage features
The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials
11. Toltal 284 Suppliers View more
Bifenthrin
Baoji Guokang Healthchem co.,ltd
 1YR   China
Tel: Update Time:2024/11/15
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Bifenthrin
Hebei Yanxi Chemical Co.,Ltd
 1YR   China
Tel: Update Time:2024/11/14
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Factory supply Bifenthrin CAS 82657-04-3 with good price
Hebei Crovell Biotech Co. Ltd
 1YR   China
Tel: Update Time:2024/11/15
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Factory Supply Bifenthrin
Amitychem Corporation
 1YR   China
Tel: Update Time:2023/06/28
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Bifenthrin
Henan Tianfu Chemical Co.,Ltd
 1YR   China
Tel: Update Time:2024/11/15
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12. Related Questions
What are the effects of Bifenthrin on human health?Introduction Synthetic pyrethroids, such as bifenthrin (BF), have been shown to cause oxidative stress in animal models, leading to an increase in oxidant markers and a decrease in antioxidant activit..
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13. Realated Product Infomation
 
1. Names and Identifiers
2. Properties
3. Use and Manufacturing
4. Safety and Handling
5. Msds
6. NMR Spectrum
7. Synthesis Route
8. Precursor and Product
9. Computational chemical data
10. Other Information
11. Toltal 284 Suppliers
12. Related Questions
13. Realated Product Infomation
 
 
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