26046-85-5 Usage
Description
D-Phenothrin is a synthetic insecticide that belongs to the class of pyrethroids. It is designed to mimic the structure and function of natural pyrethrins, which are derived from the flowers of the Chrysanthemum plant. D-Phenothrin is known for its effectiveness in controlling a wide range of insects, particularly those that pose a threat to public health and stored grain.
Uses
Used in Public Health:
D-Phenothrin is used as an insect control agent for public health purposes. It is particularly effective against mosquitoes, flies, and other insects that can transmit diseases to humans. The application of D-Phenothrin helps in reducing the spread of vector-borne illnesses, thus contributing to a healthier population.
Used in Stored Grain Protection:
In the agricultural industry, D-Phenothrin is used as a protectant for stored grain. It helps in preventing infestations by various stored product pests, such as beetles, weevils, and moths. By controlling these insects, D-Phenothrin ensures the preservation of grain quality and quantity, reducing losses and maintaining food security.
Metabolic pathway
Phenothrin is the name given to the 1RS-cis-trans isomer mixture
(racemic). The product now used is d-phenothrin which is 95% 1R and
75% trans. It has no field use because the chrysanthemate moiety is very
sensitive to photodegradation. Nevertheless, information on its photochemistry
and its fate in soils and plants has been published. Several
studies in rodents have been reported; this is a reflection of its use in
public health. Phenothrin is degraded mainly by photo-oxidation and by
hydrolysis and oxidation in plants and animals.
Degradation
Phenothrin is stable under normal storage conditions but it is labile to
base, being hydrolysed to trans-2,2-dimethyl-3-(2-methylprop-1-enyl)-
cyclopropanecarboxylic acid (11, trans-chrysanthemic acid) and 3-phenoxybenzyl
alcohol (13,3PBAlc) (Scheme 2). It is sensitive to light and, for
example, as a thin film at midday in the summer at 55 ° N, it was degraded
with a DT50 of 2.5-3.0 hours (Samsonov and Makarov, 1996).
When (lR)-trans-[14C-carboxyl]phenotwhraisn irradiated in degassed
benzene solution, the only product was the cis-isomer. However, in oxygenated
benzene solution, degradation was about 10-fold faster and many
products were detected (Ruzo et al., 1982). A similar array of products was
seen on exposure of thin films to sunlight. Major products (Scheme 1)
were formed by oxidation at the isobutylene substituent giving the
epoxide (2), the alcohol (3), the aldehyde (4) and the carboxylic acid (5).
Caronaldehyde (6) and the caronic acid derivative (7) were formed by
cleavage of ozonolysis products and the hydroperoxide (8) was formed by
ene reactions at the 1’-position. Ester cleavage to 3PBAlc, 3PBAl and 3PBA
(not shown in Scheme 1) was relatively minor.
Check Digit Verification of cas no
The CAS Registry Mumber 26046-85-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,0,4 and 6 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 26046-85:
(7*2)+(6*6)+(5*0)+(4*4)+(3*6)+(2*8)+(1*5)=105
105 % 10 = 5
So 26046-85-5 is a valid CAS Registry Number.
InChI:InChI=1/C23H26O3/c1-16(2)13-20-21(23(20,3)4)22(24)25-15-17-9-8-12-19(14-17)26-18-10-6-5-7-11-18/h5-14,20-21H,15H2,1-4H3/t20?,21-/m0/s1
26046-85-5Relevant articles and documents
Method for producing cyclopropanecarboxylates
-
, (2008/06/13)
There is disclosed a method for producing cyclopropanecarboxylates of the formula (3): by transesterification in the presence of a lanthanoid metal alkoxide
Asymmetric copper complex and cyclopropanation reaction using the same
-
, (2008/06/13)
There are disclosed asymmetric copper complex comprising, as components, (a) an optically active bisoxazoline compound of formula (1): wherein R1 and R2 are different and each represent a hydrogen atom, an alkyl group, a cycloalkyl group, or a phenyl or aralkyl group which may be substituted, R3 and R4 each represent a hydrogen atom, an alkyl group, a cycloalkyl group, or a phenyl or aralkyl group which may be substituted, or R3 and R4 may be bonded to each other to form a C3-5 cyclic alkylene group, R5 represents a hydrogen atom or a C1-6 alkyl group, or the two R5 groups may be bonded to each other to represent a C3-5 cyclic alkylene group, (b) a monovalent or divalent copper compound, and (c) a strong acid or a Lewis acid or a mixture thereof, and a process for producing an optically active cyclopropanecarboxylate using the same.
Monoclonal antibodies to synthetic pyrethroids and method for detecting the same
-
, (2008/06/13)
Methods are described for making specific monoclonal antibodies which may be used in a sensitive immunoassay for detection of synthetic pyrethroids in foods and environmental samples. Appropriate sample preparation and enzyme amplification of the immunoassay for this widely-used class of pesticides permits detection at low levels in laboratory and field tested samples.
