79538-32-2 Usage
Description
Tefluthrin is a synthetic pyrethroid pesticide, chemically defined as a cyclopropanecarboxylate ester resulting from the formal condensation of the carboxy group of 3-[(1Z)-2-chloro-3,3,3-trifluoroprop-1-en-1-yl]-2,2-dimethylcyclopropanecarboxylic acid with the hydroxy group of 2,3,5,6-tetrafluoro-4-methylbenzyl alcohol. It is synthesized from the flower heads of chrysanthemum cinerariaefolium, which contain the natural pyrethroids esters of chrysanthemumic acid or pyrethric acid. Tefluthrin is characterized by its pale yellow color and low melting point, making it a potent insecticide.
Uses
Used in Agricultural Industry:
Tefluthrin is used as an insecticide and miticide for controlling a broad range of soil pests, including members of the Coleoptera, Lepidoptera, and Diptera families. It is particularly effective in protecting crops such as maize, sugar beet, corn, grains, cotton, peanuts, sweet potato, sugarcane, cabbage, radish, Brussels sprouts, and strawberries from these pests.
Used in the United States:
Tefluthrin is a U.S. EPA restricted use Pesticide (RUP) and is registered for use on corn. It helps in controlling soil pests that can cause significant damage to the crop, ensuring a higher yield and better quality produce.
Used in European Union Countries:
Tefluthrin is also registered for use in various EU countries, where it serves as an essential tool in the management of soil pests affecting a wide range of crops. Its application in these countries contributes to the overall agricultural productivity and helps maintain the quality of the produce.
References
[1] http://www.toxipedia.org/display/toxipedia/Tefluthrin
[2] http://sitem.herts.ac.uk/aeru/ppdb/en/Reports/617.htm
Trade name
FORCE?; FORCE? ST; FORZA?; JF
6064?; KOMET-RP?; PP 993?; R 151993?
Pharmacology
The commercialized
compound, tefluthrin, was recommended to
control soil-inhabiting pests (28). The most salient feature
of the compound, which justifies its use exclusively for better
performance of tefluthrin as a soil insecticide compared
with cyhalothrin, is its approximately four orders ofmagnitude
higher vapor pressure (V.P. = 8.4 vs. 0.001 mPa; see
Table 6). Beside the quick insecticidal action attributed to
fast penetration, tefluthrin also displays toxic symptoms
at its sublethal dose, which could play an important role
in field performance (179). The most active configuration
of tefluthrin, (Z)(1RS)-cis-isomer mixture, is the optically
active (Z)(1R)-cis-isomer.
Metabolic pathway
When a goat is dosed with 14C-tefluthrin orally,
extensive metabolism occurs in the goat by ester
cleavage and oxidation at a variety of positions on the
molecules. Low radioactive residues are detected in
the milk, fat, and muscle, with tefluthrin as the largest
individual component of the residue. Higher residues
are present in the kidney and liver, and only a small
percentage of this residue is due to tefluthrin. The
remainder in the kidney and liver is a complex mixture
of metabolites. In total, eight metabolites are identified
in the feces and urine as well as other tissues such as
fat, muscle, kidney, and liver.
Degradation
Tefluthrin is a stable compound, being resistant to hydrolysis at pH 5-7
for at least 30 days. At pH 9, 7% hydrolysis occurred in 30 days. It is
readily hydrolysed at higher pH to afford the cyclopropanecarboxylic
acid (2) and 2,3,5,6-tetrafluoro-4-methylbenzyl alcohol (3). Exposure in
aqueous solution at pH 7 to sunlight causes about 30% degradation in 31
days. Conversion to the trans-isomer occurred and hydrolysis to cis- and
trans-2 and 3 followed.
Check Digit Verification of cas no
The CAS Registry Mumber 79538-32-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,5,3 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 79538-32:
(7*7)+(6*9)+(5*5)+(4*3)+(3*8)+(2*3)+(1*2)=172
172 % 10 = 2
So 79538-32-2 is a valid CAS Registry Number.
InChI:InChI=1/2C17H14ClF7O2/c2*1-6-11(19)13(21)7(14(22)12(6)20)5-27-15(26)10-8(16(10,2)3)4-9(18)17(23,24)25/h2*4,8,10H,5H2,1-3H3/b2*9-4-/t2*8-,10-/m10/s1
79538-32-2Relevant articles and documents
Method for fighting against arthropods destructive of crops and compositions therefor
-
, (2008/06/13)
The present invention relates to processes for controlling arthropods, particularly processes for controlling insects and especially processes for controlling insects which ravage crops, particularly rice crops or market-garden crops; as well as to processes for protecting crops, particularly rice crops or market-garden crops; as well as to processes directed towards improving the yield of the treated crops; as well as to compositions or products which may be used in such processes.
