68085-85-8 Usage
Description
Cyhalothrin is a carboxylic ester that is derived from the formal condensation between 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylic acid and cyano(3-phenoxyphenyl)methanol. It is a colorless solid that is insoluble in water and is widely used as a broad-spectrum insecticide.
Uses
Used in Agriculture:
Cyhalothrin is used as an insecticide and acaricide for the control of a variety of insect pests in various crops. It is particularly effective against pests such as the Colorado beetle in potatoes, cereals, hops, vegetables, cotton, and other crops.
Used in Animal Health:
Cyhalothrin is also used mainly for ectoparasite control on animals, helping to protect them from harmful insects and mites.
Used in Public Health:
Lambda-cyhalothrin, a form of Cyhalothrin, has public health applications and is utilized for the control of insect-borne diseases by targeting the insects that transmit them.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Cyhalothrin is a trifluoromethyl pyrethrine derivative.
Metabolic pathway
Cyhalothrin is similar in structure to cypermethrin but with one of the
chlorine atoms replaced by a trifluoromethyl group. This substitution
appears to result in greater lipophilicity. Cyhalothrin is used in animal
health and the more active isomer mixture, lambda-cyhalothrin, has the
main crop use. Only a limited amount of information has been published
in the scientific literature. What is available indicates that the metabolism
and environmental fate of the cyhalothrins are very similar to those of
cypermethrin. Both compounds have been the subject of UK Pesticide
Safety Directorate evaluations (referred to as PSD in parentheses below).
Degradation
Cyhalothrin is stable to decomposition and to cis-trans isomerisation for
at least 4 years in the dark. It is a photostable pyrethroid. It is hydrolysed
at high pH to afford the acid (2) and the cyanohydrin (3) which
decomposes to 3-phenoxybenzaldehyde (4,3PBAl).
Check Digit Verification of cas no
The CAS Registry Mumber 68085-85-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,0,8 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68085-85:
(7*6)+(6*8)+(5*0)+(4*8)+(3*5)+(2*8)+(1*5)=158
158 % 10 = 8
So 68085-85-8 is a valid CAS Registry Number.
68085-85-8Relevant articles and documents
Preparation method of cyanogen chrysanthemum ester insecticide
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Paragraph 0031; 0034, (2017/08/25)
The invention discloses a preparation method of a Clocythrin pesticide. The method comprises the following steps: a) mixing chrysanthemic acid and chrysanthemyl chloride and placing the mixture into a reaction vessel, adding triethylamine and introducing phosgene, slowly heating to 55-110 DEG C and fully reacting for 1-4 h so as to generate Chrysanthemoyl chloride; and b) dissolving sodium cyanide in an aqueous-phase Triton micellar solution, adding a catalyst and heating to 40 DEG C, slowly and dropwise adding mixed liquor of Chrysanthemoyl chloride and m-Phenoxybenzaldehyde, keeping the temperature and reacting for 1-4 h, cooling to 10 DEG C, adding a few amount of water and crystal seed, fully stirring and precipitating solids, and washing the precipitated solids with alkali, washing, filtering and drying so as to obtain a final product Clocythrin. The solvent in the invention can be recycled, use of the catalyst and water is reduced, and discharge of toxic wastewater and exhaust gas is minimized. The post-processing procedure is simple, and extraction and solvent distillation are not required. The final product can be obtained through simple centrifugation, washing and filtration. Discharge of solid wastes is decreased.
AGRICULTURAL CHEMICALS
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Page/Page column 49, (2013/09/26)
The present invention relates to derivatives of compounds which are known to be of use in the field of agriculture. These derivatives are differentiated from the parent active compound by virtue of being redox derivatives of the active compound. This means that one or more of the functional groups in the active compound has been converted to another group in one or more changes one or more of which may be considered to represent a change of oxidation state relative to the groups in the original compound. We refer to these compounds generally as redox derivatives. The compounds are of use as insecticides, herbicides and insect repellents.
Non-aqueous liquid ectoparasiticidal pour-on formulation
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, (2008/06/13)
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