Nicotine And Pyrethroid Intermediates 3-dimethyl- Organic Intermediate CAS 63721-05-1
Basic Information
Model Number : HMHT0160
Name:3,3-Dimethyl-4-pentenoic acid methyl ester
CAS: 63721-05-1
CAS:63721-05-1
Appearance: clear liquid
Refractive index: 1.423
Chemical formula: C8H14O2
Molecular weight: 142.2
Other Name
4-Pentenoic acid, 3,3-dimethyl-, methyl ester
EINECS 264-431-8
Methyl 3,3-dimethyl-4-pentenoate
methyl 3,3-dimethylpentenoate
3,3-dimethyl-pent-4-enoic acid methyl ester
Product Parameters
Item | Specification |
Appearance | Colorless transparent liquid |
Inchi | InChI=1/C8H14O2/c1-5-8(2,3)6-7(9)10-4/h5H,1,6H2,2-4H3 |
Density | 0.893g/cm3 |
Boiling point | 136.3°C at 760 mmHg |
Flash point36 | 40.4°C |
Refractive index | 1.423 |
First generation pyrethroids
characteristic
(1) There are eight isomers in structure, of which 1R, 3R (+) trans and S (+) isomers have the highest toxicity to housefly (LD50=0.24g/fly), which is 500 times higher than the lowest toxicity of 1S, 3R (-) trans and R (-) isomers (45.2g/fly).
(2) Strong touch killing, fast knockdown, and less effective than pyrethroids (especially against cockroaches).
(3) Vapor pressure 20 ℃, 9.33 × 10Pa, can be processed into mosquito repellent incense, electric mosquito repellent incense sheet.
(4) Short residual effect and light sensitivity (slightly better stability than Pyrethrin).
(5) Low toxicity: oral LD50:685 in rats( ♀)- 1100( ♂) mg/Kg .
type
(1) Allethrin
Allethrin is a contact insecticide, mainly used in mosquito repellent incense and aerosol to control mosquitoes and flies. It can be compounded with permethrin, permethrin, permethrin, deltamethrin, and cyfluthrin as aerosols.
Propethrin has strong insecticidal efficacy, fast knockdown speed, and moderate vapor pressure. It has fumigation and contact killing effects. Due to its excellent repellent effect against mosquitoes, it is particularly suitable for mosquito coils and electric mosquito coils. D-allethrin, especially Es biological allethrin, has a remarkable knockdown effect, so it can also be used as aerosol and spray. However, allethrin has a poor lethality to pests, so it should be used in combination with insecticides with strong lethality.
(2) Other main varieties
By 1972, about 19 varieties (including about 33 varieties of isomers) had been synthesized.
A. Resmethrin and Bioresmethrin (D-trans isomer)
b.Resmethrin
c.Bioresmethrin
Company Profile
Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special
chemical production, technology research & development, and import & export. The company focuses on
the production, trade, and research & development of various chemical products.
Since establishment, the company has been concentrating on constructing an international marketing
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