66841-24-5 Usage
Description
alpha-cyano-3-phenoxybenzyl [1R-[1alpha(R),3beta]]-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, also known as (1R,2S,1''R)-Cypermethrin, is a synthetic pyrethroid insecticide that belongs to the most active isomers of fenvalerate and other recent pyrethroids. It is characterized by its unique chemical structure, which includes a cyano group, a phenoxybenzyl moiety, and a dichlorovinyl group attached to a cyclopropanecarboxylate core. alpha-cyano-3-phenoxybenzyl [1R-[1alpha(R),3beta]]-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate exhibits potent insecticidal properties and is widely used in various applications.
Uses
Used in Agricultural Industry:
alpha-cyano-3-phenoxybenzyl [1R-[1alpha(R),3beta]]-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate is used as an insecticide for controlling a broad spectrum of pests in various crops. Its high efficacy and selectivity make it an ideal choice for protecting plants from damaging insects, thus ensuring increased crop yields and quality.
Used in Public Health:
In the public health sector, alpha-cyano-3-phenoxybenzyl [1R-[1alpha(R),3beta]]-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate is used to control and prevent the spread of vector-borne diseases caused by insects such as mosquitoes, flies, and ticks. Its quick knockdown effect and residual activity contribute to reducing the populations of these disease-carrying insects, thereby safeguarding human and animal health.
Used in Veterinary Medicine:
alpha-cyano-3-phenoxybenzyl [1R-[1alpha(R),3beta]]-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate is also employed in veterinary medicine for the treatment and control of ectoparasites in livestock and pets. Its insecticidal properties help in managing infestations of mites, lice, and ticks, thus improving the overall health and well-being of animals.
Used in Household Pest Control:
For household pest control, alpha-cyano-3-phenoxybenzyl [1R-[1alpha(R),3beta]]-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate is used in various formulations such as sprays, aerosols, and foggers. Its effectiveness in eliminating common household pests like mosquitoes, flies, and cockroaches makes it a popular choice for maintaining a clean and healthy living environment.
Potential Exposure
Pyrethroid Insecticide used for the
control of a wide range of chewing and sucking insects
(particularly lepidotera, coleoptera, and hemiptera) in fruit
(including citrus), vegetables, vines, cereals, maize, beet,
oilseed rape, potatoes, cotton, rice, soya beans, forestry,
and other crops. Control of cockroaches, mosquitoes, flies,
and other insect pests in public health; and flies in animal
houses. Also used as an animal ectoparasiticide. zeta-
Cypermethrin only is a United States Environmental
Protection Agency Restricted Use Pesticide (RUP).
Shipping
UN3349 Pyrethroid pesticide, solid toxic,
Hazard Class: 6.1; Labels: 6.1-Poisonous material. UN3352
Pyrethroid pesticide, liquid toxic, Hazard Class: 6.1;
Labels: 6.1-Poisonous materials.
Incompatibilities
May react violently with strong oxidi-
zers, bromine, 90% hydrogen peroxide, phosphorus
trichloride, silver powders, or dust. Incompatible with silver
compounds. Mixture with some silver compounds forms
explosive salts of silver oxalate.
Check Digit Verification of cas no
The CAS Registry Mumber 66841-24-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,4 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66841-24:
(7*6)+(6*6)+(5*8)+(4*4)+(3*1)+(2*2)+(1*4)=145
145 % 10 = 5
So 66841-24-5 is a valid CAS Registry Number.
InChI:InChI=1/C22H19Cl2NO3/c1-22(2)17(12-19(23)24)20(22)21(26)28-18(13-25)14-7-6-10-16(11-14)27-15-8-4-3-5-9-15/h3-12,17-18,20H,1-2H3/t17-,18+,20+/m1/s1
66841-24-5Relevant articles and documents
Syntheses of diastereoisomers of the recent pyrethroids, fenvalerate (S-5602) and cypermethrin (NRDC-149) from (-)-3-phenoxy-mandelic acid and determination of their absolute configurations
Aketa,Ohno,Itaya,et al.
, p. 895 - 896 (1978)
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Chiral stability of synthetic pyrethroid insecticides
Liu, Weiping,Qin, Sujie,Gan, Jianying
, p. 3814 - 3820 (2007/10/03)
Synthetic pyrethroids are chiral compounds consisting of multiple stereoisomers. Evaluation of enantioselectivity in environmental fate and ecotoxicity requires analytical methods that preserve stereoisomer integrity during analysis. In this study, we characterized the stability of stereoisomers from four commonly used pyrethroids, cis-bifenthrin (cis-BF), permethrin (PM), cypermethrin (CP), and cyfluthrin (CF), during gas chromatography (GC) analysis and sample preparation. Stereoisomers of cis-BF and PM were found to be stable, but those of CP and CF were unstable, under heat or in water. Isomer conversion occurred only at the aC in CP or CF, causing the analyte stereoisomer to convert to an epimer. At a GC inlet temperature of 260°C, about 9% conversion occurred for CP and CF. In organic solvents and sterile water, stereoisomers of cis-BF and PM were stable, but slow isomer conversion was observed for CP and CF in water at ambient temperature. However, isomer conversion for CP and CF was relatively insignificant (2-3%) when the GC inlet temperature was kept at ≤ 180°C or when on-column injection was used. Isomer conversion at the αC in water suggests that abiotic processes may also contribute to enantioselectivity observed in the environment for pyrethroids with the asymmetric αC.
